题目

用NA表示阿伏加德罗常数，下列有关说法正确的是（   ） A . 在常温常压下，11.2LN2含有的分子数为0.5NA B . 在常温常压下，1mol氦气含有的原子数为2NA C . 71gCl2所含原子数为2NA D . 23g钠在化学反应中失去电子数目为10NA 答案：CA Strange Greeting, a True Feeling. Last week I was invited to a doctor’s meeting at the Ruth hospital for incurables. In one of the wards a  patient, an old man, got up shakily from his bed and moved towards me. I could see that he hadn't long to   36  , but he came up to me and placed his right foot close mine on the floor. “Frank！” I cried in astonishment. He couldn’t   37   , as I knew, but all the time   38  his foot against mine. My   39   raced back more than thirty years to the   40   days of 1941, when I was a student in London. The   41  was an air-raid shelter, in which I and about hundred other people slept every night. Two of the regulars were Mrs. West and her son Frank.   42   wartime problems, we shelter-dwellers got to   43  each other very well. Frank West   44  me because he wasn’t   45 , not even at birth. His mother told me he was 37 then, but he had   46  of a mind than a baby has. His “  47 ” consisted of rough sounds—sounds of pleasure or anger and   48  more. Mrs. West, then about 75, was a strong, capable woman, as she had to be, of course, because Frank   49  on her entirely. He needed all the   50  of a baby. One night a policeman came and told Mrs. West that her house had been flattened by a 500-pounder. She   51  nearly everything she owned. When that sort of thing happened, the rest of us helped the   52  ones. So before we   53   that morning, I stood beside Frank and   54  my right foot against his. They were about the same size. That night, then, I took a pair of shoes to the shelter for frank. But as soon as he saw me he came running and placed his right foot against mine. After that, his   55  to me was always the same. 1.                A．work           B．stay            C．live  D．expect 2.                A．answer         B．speak          C．smile D．laugh 3.                A．covering        B．moving         C．fighting   D．pressing 4.                A．minds          B．memories       C．thoughts  D．brains 5.                A．better          B．dark           C．younger  D．old 6.                A．cave           B．place           C．sight D．scene 7.                A．Discussing       B．Solving         C．Sharing   D．Suffering 8.                A．learn from      B．talk to          C．help D．know 9.                A．needed        B．recognized      C．interested D．encouraged 10.               A．normal         B．common        C．unusual   D．quick 11.               A．more          B．worse          C．fewer D．less 12.               A．word          B．speech         C．sentence  D．language 13.               A．not            B．no            C．something D．nothing 14.               A．fed            B．kept           C．lived  D．depended 15.               A．attention       B．control         C．treatment  D．management 16.               A．lost            B．needed        C．destroyed D．left 17.               A．troublesome    B．unlucky        C．angry D．unpopular 18.               A．separated       B．went           C．reunited   D．returned 19.               A．pushed         B．tried           C．showed   D．measured 20.               A．nodding        B．greeting        C．meeting   D．acting