女性，20岁，学生，不出门怕见人，不去上课，纠缠父母出钱，给自己做美容手术半年，原因

同一构件中相邻纵向受力钢筋的绑扎搭接接头宜相互错开。绑扎搭接接头中钢筋的横向净距不应小于钢筋直径，且不应小于（）。

A.20mm

B.25mm

C.30mm

D.50mm

完形填空。

Mr Smith was an old miser (守财奴). He had a lot of   1  , but he never bought anything   2  . He and his wife lived in an old house outside the town. He often went to the shop   3   in order to (为了) save some money. In the   4  , as soon as it was dark in the room, he   5  . He had no TV but bought a cheap radio and often   6   the advertisements.     The old man had no   7  , his wife was often ill. He wouldn't send her to the hospital. He thought he would   8   much to the doctors if they looked her over. He bought a few medical books and bought some medicine (药)   9   her.     One night, Mrs Smith felt unwell, she had got a bad headache. She asked her husband to  10  a doctor, but he didn't agree (同意). He brought out some pills and made her  11  them. But it was no use.     The old woman began to  12  at home. He locked the door and went in another room and  13  there. The next morning, when he woke up, he came into her   14  to see if she was all right. But he found the poor woman had died. He hurried to the telephone, but  15  his mind at once. He ran out and shouted to servant (佣人), "Don't cook breakfast for Mrs Smith this morning, Linda!"

( )1. A. books       ( )2. A. bad          ( )3. A. on foot     ( )4. A. day          ( )5. A. went to bed  ( )6. A. listened to  ( )7. A. brothers     ( )8. A. pass         ( )9. A. to          ( )10. A. look for    ( )11. A. take        ( )12. A. laugh       ( )13. A. slept        ( )14. A. workplace    ( )15. A. kept         B. money               B. good                B. by bus              B. morning             B. went to the cinema   B. watched             B. sisters              B. tell                B. in                   B. take care of         B. drink                B. sing                B. played               B. bedroom             B. finished             C. clothes         C. expensive      C. by taxi         C. afternoon      C. read newspaper  C. mended          C. uncles         C. pay             C. for             C. catch up with     C. to take         C. cry             C. worked          C. library        C. changed         D. shoes                  D. cheap                  D. by motorbike            D. evening                D. went to dance          D. looked at              D. children               D. sell                   D. from                   D. send for (派人去请)        D. to drink               D. dance                  D. drank                  D. kitchen                D. forgot

谷胱甘肽(C₁₀H₁₇0₆N₃S)是存在于动植物和微生物细胞中的一种重要三肽，它是由谷氨酸(C₅H₉0₄N)、甘氨酸(C₂H₅0₂N)和半胱氨酸缩合而成的，则半胱氨酸可能的分子式为 [ ]

A．C₃H₃NS

B．C₃H₅NS

C．C₃H₇0₂NS

D．C₃H₃0₂NS

下表为某市居民家庭2011年总收入和总支出情况（单位：元）。

总收入	总 支 出
125000	食品	日用品]	教育	水电气	通讯娱乐交通	购买 基金	医疗
	20000	10000	5000	2000	1500	20000	3000

该居民家庭这一年的恩格尔系数应该为

A．32.52%     B．51.95%    C．48.19%     D．49.2%

如果一个保安员不能诚实守信，会影响他本人的形象，但不影响他所在单位的形象。