下列属于让步状语从句的是（ ）。A Lover of towns as I am, I realize that I owe a debt to my early country life.B Please do exactly as I have told you.C It is better that we should die rather than that we (should) beslaves.D Though he was a small child, he knew what was the right thing to do.

MMSI number of vessel is broadcast every few minutes by______.A. ECDISB. AISC. GPSD. VDR

5. To ___ the living standard of the people has been the main task of the government over the past decades.A. raiseB. riseC. ariseD. arouse

How does an early-warning system help us maintain the ecological balance?A. By getting illegal practices under controlB. By stopping us from killing Large predatorsC. By bringing the broken-down ecosystem back to normalD. By signaling the urgent need for taking preventive action.

In which condition should not seafarers be permitted to perform watchkeeping duties? ()A. Seafarers are found to be under the influence of drugs or alcohol.B. Seafarers are found in high spirits.C. Seafarers are found to rest well.D. Seafarers are found wearing glasses.

One day a few years ago a very funny thing happened to a neighbour of mine. He is a teacher at one of London's big medical schools, He had finished his teaching for the summer term and was at the airport on his way to Russia to give a lecture. He had put a few clothes and his lecture notes in his shoulder bag, but he had put Rupert, the skeleton (人体骨骼) to be used in his lecture, in a large brown suitcase (箱子). At the airport desk, he suddenly thought that he had forgotten to buy a newspaper. He left his suitcase near the desk and went over to the shop. When he got back he discovered that someone had taken his suitcase by mistake. He often wonders what they said when they got home and found Rupert.单选题 3/5What happened at the airport?A The skeleton went missing.B The skeleton was stolen.C The teacher forgot his suitcase.

52.单选题No audible or visible alarm is generated while the SSAS alert is being transmitted, to ( )A. prevent discovery of the alert by the intrudersB. save electricity of the backup batteryC. avoid interfering with other devicesD. meet the radio silence requirement

(单选题，1分) At first, Tom found it difficult to ___ what his teachers said in class.A. punishB. recognizeC. purchaseD. absorb

The problems of the elderly are attracting greater attention largely because the American population is growing steadily older as the proportion of its aged members increase. At the time of the first United States census in 1790, half of the people in the country were 16 or younger. By the turn of the present century the median age (年龄中值) of the population had risen to 22.9 years; by 1970, it was 27.7; and by 1977, it had reached 28.9; the median age will reach 35 by the year 2000, and had reached approach 40 by the year 2030.In time, the burden of the years affects even the healthiest individual. Aging is accompanied by physiological changes; apart from the more obvious signs of age—such as baldness, wrinkling, changes in body form, and stiffness (僵硬) of limbs—there is a general process of atrophy (萎缩) of the cells and gradual degeneration(退化). However, the rate of physiological aging varies greatly from one person to another. Some people show noticeable signs of aging as early as fifty. Others seem relatively young and vital at seventy.In general, however, ill health becomes more common with advancing age. They suffer from some chronic health condition. But ill health need not have only physiological causes; it can have social and psychological causes as well. People tend to follow social expectations to fill the roles that are offered to them. In a sense, all we offer the aged is a sick role—the role of the weak person who has outlived his or her usefulness to society.Unlike the elders in a traditional society, the American aged would no longer lay automatic claim on their kin for support and social participation. They are unwilling to do so. On the contrary, they are more likely to have to try not to be a “nuisance” to their now independent adult offspring.In America, childhood is romanticized, youth is idolized, middle age does the work, has the power and pays the bills, and old age gets little or nothing for what it has already done. For many elderly Americans, old age is a tragedy, a period of quiet despair.1. The statistics in the first paragraph shows that ____.A. the American population is risingB. the definition of middle age is changingC. the American society is becoming older

I felt ____ and unable to give her the support she needed.A. helpB. helpfulC. helpfullyD. helpless

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