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【简答题】
垫层材料宜采用无杂物的中、粗砂,含泥量应小于()%;也可采用天然级配砂砾料,其最大粒径应小于50mm,砾石强度不低于四级(即洛杉矶法)磨耗率小于60%。 A2 B3 C5 D8
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参考答案:
举一反三
【单选题】在液相色谱中,改变洗脱液极性的作用是( )
A.
减少检验过程中产生的误差
B.
缩短分析用时
C.
使温度计更好看
D.
对温度计进行校正
查看完整题目与答案
【单选题】在试算平衡表上,虽然实现了期初余额、本期发生额和期末余额三栏的恒等关系,但仍然不能保证账户记录是完全正确的。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】we had hardly got to the station ( )it began to rain.
A.
until
B.
since
C.
while
D.
when
查看完整题目与答案
【简答题】消费品市场的特点是什么
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【单选题】消费品市场的特点是( )
A.
市场较集中
B.
购买人数多而散
C.
专用性较强
D.
购买决策常为集体决策
查看完整题目与答案
【单选题】消费品市场的特点是( )。
A.
市场较集中
B.
购买人数多而散
C.
专业性较强
D.
购买决策常为集体决策
查看完整题目与答案
【单选题】We had hardly got to the school it began to rain.
A.
until
B.
since
C.
while
D.
when
查看完整题目与答案
【单选题】Hardly ____ into the country ____ it began to rain.
A.
we had got; when
B.
we got; than
C.
had we got; when
D.
did we get; than
查看完整题目与答案
【单选题】Hardly had we got to the station_______the train left.
A.
than
B.
as
C.
with
D.
when
查看完整题目与答案
【单选题】Hardly had we got on the bus __ it began to rain.
A.
when
B.
since
C.
but
D.
before
查看完整题目与答案
相关题目:
【单选题】在液相色谱中,改变洗脱液极性的作用是( )
A.
减少检验过程中产生的误差
B.
缩短分析用时
C.
使温度计更好看
D.
对温度计进行校正
查看完整题目与答案
【单选题】在试算平衡表上,虽然实现了期初余额、本期发生额和期末余额三栏的恒等关系,但仍然不能保证账户记录是完全正确的。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】we had hardly got to the station ( )it began to rain.
A.
until
B.
since
C.
while
D.
when
查看完整题目与答案
【简答题】消费品市场的特点是什么
查看完整题目与答案
【单选题】消费品市场的特点是( )
A.
市场较集中
B.
购买人数多而散
C.
专用性较强
D.
购买决策常为集体决策
查看完整题目与答案
【单选题】消费品市场的特点是( )。
A.
市场较集中
B.
购买人数多而散
C.
专业性较强
D.
购买决策常为集体决策
查看完整题目与答案
【单选题】We had hardly got to the school it began to rain.
A.
until
B.
since
C.
while
D.
when
查看完整题目与答案
【单选题】Hardly ____ into the country ____ it began to rain.
A.
we had got; when
B.
we got; than
C.
had we got; when
D.
did we get; than
查看完整题目与答案
【单选题】Hardly had we got to the station_______the train left.
A.
than
B.
as
C.
with
D.
when
查看完整题目与答案
【单选题】Hardly had we got on the bus __ it began to rain.
A.
when
B.
since
C.
but
D.
before
查看完整题目与答案
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