题干

1分子的ADP含有腺苷、磷酸基和高能磷酸键的数目依次是

A:1、2、2

B:1、2、1

C:2、1、2

D:2、1、1

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答案(点此获取答案解析)

B

同类题2

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    White-collar workers increasingly unhealthy

    An increasing number of white-collar workers in Shanghai are getting failing grades on their physical examinations, according to a white paper on the health of white-collar workers in Shanghai.

    Carried out by Shanghai Foreign Service Group,a human resources company,the report indicated that more than 53 percent of males are overweight,46 percent suffer from a fatty live and about 26 percent have elevated blood lipids(血脂).However,females are more often diagnosed as having breast lesions(乳房病变)that could lead to cancer (85 percent),thyroid(甲状腺)disorder (34 percent) and hemorrhoids(痔疮)(23 percent).

    Though the report also found that white-collar workers were paying increasing attention to their health—with about 84 percent saying they followed their condition closely or very closely—those with healthy lifestyles dropped to 64 percent last year from 77 percent in 2015.

    The report came from about 500,000 physical exams taken by while-collar workers in Shanghai over the past five years.“I always eat and drink too much and never exercise,”said Wei Ruoxi,a 26-year-old working in finance who is struggling with being overweight.“I know what a healthy lifestyle looks like,but the job just brings too much pressure and squeezes out exercise time,”she added.Hu Xiaolong,30,an accountant in Shanghai,said he was determined to live healthily from now on.“My recent physical examination shows a little shadow in the lung,which startled me when I heard it.I really need to quit these habits like smoking and staying up late.”

    The white paper also showed that more people are turning to commercial health insurance to cope with financial risks caused by health problems.The popularity of insurance purchases among the participants reached 15.3 percent last year,a rise of 4 percentage points in just one year.Most participants also expected their companies to help them with effective health management,such as offering membership cards for gyms,flexible working schedules and regular physical examinations.

同类题4

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    A young man wandered through the desert for forty until he reached a beautiful castle at the top of a mountain. There lived the sage that he was looking for.

    With considerable patience, the sage listened attentively to the reason for the boy's visit, but told him that at that moment he did not have time to explain to him the secret of happiness.

    He suggested that the young man take a walk around his palace and come back in two hours' time.

    “However, I want to ask you a favor,” he added, handing the boy a teaspoon, in which he poured two drops of oil. “While you walk, carry this spoon and don't let the oil spill.”

    The young man began to climb up and down the palace staircases, always keeping his eyes fixed on the spoon. At the end of two hours he returned to the presence of the wise man.

    “So,” asked the sage, “did you see the Persian tapestries hanging in my dining room? Did you see the fantastic garden that the Master of Gardeners spent ten years in creating?”

    Embarrassed, the young man admitted that he had seen nothing.

    “So, go back and see the wonders of my world,” said the wise man. “You can't trust a man if you don't know his house.”

    Now more at ease, the young man took the spoon and wandered again through the palace, this time paying attention to all the works of art that hung from the ceilings and walls. He saw the gardens, the mountains all around the palace, and the delicacy of the flowers. Returning to the sage, he reported in detail what he had seen.

    “But where are the two drops of oil that I entrusted to you?” asked the Sage.

    Looking down at the spoon, the young man realized that he had spilled the oil.

     “Well, that is the only advice I have to give you,'' said the sage of sages. “The secret of happiness lies in looking at all the wonders of the world and never forgetting the two drops of oil in the spoon.”