______ scientists haw learned a lot about the universe， there is much we still don‘t know.
A. Once
B. Since
C. Though
D. Unless
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What can we learn about the first experiment？
A. Sparrow"s team typed the information into a computer.
B. The two groups remembered the information equally well.
C. The first group did not try to remember the formation.
D. The second group did not understand the information.
下列关于无形资产会计处理的表述中。正确的是（）。
A. 当月增加的使用寿命有限的无形资产从下月开始摊销
B. 无形资产摊销方法应当反映其经济利益的预期实现方式现方式
C. 价款支付具有融资性质的无形资产以总价款确定初始成本
D. 使用寿命不确定的无形资产应采用年限平均法按l0年摊销
Ants can use pheromones for______.
A. escape
B. communication
C. warning enemies
D. arranging labor
It is reported that a space station ______ on the moon in years to come.
A. will be building
B. will he built
C. has been building
D. has been built
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