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【简答题】
填空。 Americans think much about time. From children they 1 to value(珍惜)time. As children they are taught to be on time 2 to school, to work and to do everything. When they are having a good time, they 3 that time flies. When a person is dying(生命垂危),they say he is living on 4 time .Time is money. Time is 5 in America. A working American has to work hard for eight hours a day or forty hours 6 . This is the working time. In his free time, he also works hard 7 more money. Even on Saturday and Sunday he also works hard as usual. In the street you can 8 see that a man walks slowly. They walk very fast. In fact, they are running. They love 9 because time can bring them money and a lot of things . But sometimes they also 10 time,because they feel that they have become servants(仆人)of the clock. (     )1. A. teach (     )2. A. going (     )3. A. say (     )4. A. lent (     )5. A something (     )6. A a day (     )7. A for (     )8. A nearly (     )9. A money (     )10. A hate B. earn B. go B. tell B. borrow B. anything B. a week B. on B. hardly B. work B. love C. work C. to go C. ask C. lend C. everything C. a month C. with C. almost C. time C. feel D. play D. went D. speak D. borrowed D. nothing D. an hour D. at D. always D. knowledge D. like
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【判断题】用G32加工螺纹时,分多次进刀车削,每刀的螺纹起点的Z坐标必须一样,否则会乱扣,出现多条螺纹线。
A.
正确
B.
错误
【单选题】组分A、B在某气液色谱柱上的分配系数分别为495和467,在分离时( )组分先流出色谱柱。
A.
A
B.
B
C.
同时流出
D.
以上都不对
【简答题】组分 A 、 B 在某气液色谱柱上的分配系数分别为 488和 466。 试问在分离时哪个 组分先流出色谱柱。
【简答题】组分A、B在某气液色谱柱上的分配系数分别为495 和467 。试问在分离时哪个组分先流出色谱柱?
【多选题】划分法律的历史类型有助于认识和揭示法律的阶级本质及其发展变化的历史规律。与人类进入阶级社会后的社会形态划分相一致,人类社会存在以下几种类型的法律( )。
A.
奴隶制法律
B.
资本主义法律
C.
社会主义法律
D.
封建制法律
【单选题】二进制代码 “0001 0010” ,右数第六位的权是 ( )。
A.
4
B.
8
C.
16
D.
32
【简答题】立体线形由()和()组合而成
【单选题】A、B、C三物质在某气液色谱柱上的分配系数分别是0、467、495,则分离其混和物时保留时间的大小顺序是何种,哪种组分的保留时间可称为死时间
A.
A>B>C
B.
B>A>C
C.
C>B>A
D.
B>C>A
【判断题】组分A、B在某气液色谱柱上的分配系数分别为495和467,在分离时应该是B组分先流出色谱柱。
A.
正确
B.
错误
【单选题】形成血浆晶体渗透压的主要离子是( )
A.
Na+
B.
K+
C.
Cl-
D.
HCO3-
E.
Mg2+
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