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问题 单项选择题

当可选择的供应商很少或产品不能仅从价格方面来判断差别的时候，政府往往采取（）的方式来选择供应商。

A.询价采购

B.招标采购

C.竞争性谈判

D.有限竞争性采购

答案

参考答案：C

选择题

如图所示，烧杯中盛有0℃的碎冰，装有0℃碎冰的试管插入烧杯里的碎冰中，(试管底部不接触烧杯底)，缓缓加热，烧杯中的冰有一半熔化时，管中冰将 

A．不熔化

B．熔化

C．一半

D．少于一半
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单项选择题

If you are on the beach and are signaling to a small boat in distress that your present location is dangerous and they should land to the left，you would（）.

A.fire a green star to the left

B.send the letter K by light and point to the left

C.place an orange signal to your left as you signal with a white light

D.send the code signal S followed by L
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