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【单选题】
___ terrible weather we had yesterday!
A.
what a
B.
what
C.
how a
D.
how
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【单选题】1+1,2+3,3+5,1+7,2+9,3+11,1+13,…第40项为( )
A.
1+83
B.
1+81
C.
1+79
D.
1+77
【单选题】有关肉汤稀释法药物原液,叙述错误的是
A.
原液浓度不低于1000μg/ml
B.
原液浓度10倍高于最低测试浓度
C.
原液浓度10倍高于最高测试浓度
D.
原液应贮存于-60℃以下
E.
保存期不超过6个月
【单选题】已知点A(-3,-4),B(6,3)到直线l:ax+y+1=0的距离相等,则实数a的值等于(  )
A.
7 9
B.
- 1 3
C.
- 7 9 或- 1 3
D.
7 9 或 1 3
【多选题】The principles of the Guide for the Care and Use of Laboratory Animals (8th Edition, 2011) are:
A.
Consideration of alternatives (in vitro systems, computer simulations, and/or mathematical models) to reduce or replace the use of animals
B.
Design and performance of procedures on the basis of relevance to human or animal health, advancement of knowledge, or the good of society
C.
Use of appropriate species, quality, and number of animals
D.
Avoidance or minimization of discomfort, distress, and pain
【多选题】泡茶的五字要领为:神、()、()、()、巧。
A.
B.
C.
D.
【单选题】若sin( π 3 -a )= 1 3 ,则cos( π 3 +2a )(  )
A.
- 7 9
B.
- 1 3
C.
1 3
D.
7 9
【单选题】European conservatives, until the end of the 19th century, rejected democratic principles and institutions. Instead they opted for monarchies or for authoritarian government.
A.
chose
B.
constructed
C.
conceived
D.
conserved
【简答题】什么是国际贸易术语?选择 CIF 进行贸易时,卖方有哪些义务?
【单选题】若 sin( π 3 -α)=- 1 3 ,则 cos( π 3 +2α) =(  )
A.
- 7 9
B.
- 1 3
C.
1 3
D.
7 9
【简答题】A.Threat from weapons. B.Influence of violence on TV. C.Changes of moral principles. D.The unknown reason.
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