The chemistanalyzed that there was no [trace] of poison in the coffee.

[问答题]()I prefer tea to coffee.

[名词解释] 裂变毒物 fission poison

[单选题]B．y selling special coffee at a coffee cafe, the students are ______.A． gaining a lot of experienceB． making a lot of moneyC． having a lot of troubleD． learning a lot of knowledge

[单选题]iBSCCLCK/ICM单板上TRACE灯常亮表示什么意思TRACE？（）A . 表示单板当前正处于快捕状态，即有基准，未锁定B . 表示单板当前正处于跟踪状态，即有基准，已锁定C . 表示已经锁定，但是中途基准丢失D . 表示单板既没有锁定，也没有基准，处于自由运行状态

[问答题] 什么是RIP协议的毒性逆转（poison reverse）？

[单选题]C．hinese authorities said Tuesday trace amounts of atmospheric()from Japan have been detected in Beijing and many areas other than Heilongjiang in the northeast but stressed(强调)they pose no threat to public health．A． radialB．radiateC． radiatorD．radia

[单选题]______you like some coffee?A.WillB.ShallC.WouldD.Should

[问答题]I prefer tea to coffee

[名词解释] 微量元素(trace element, microelement)

[主观题]如何启动SESSION级别的TRACE