车载设备主机采用二乘二取二结构时,工作机故障自动切换到备用机,切换时间应不大于()
A、0.5S
B、1S
C、2S
D、4S
参考答案:A
根据所给句子的意思,填上合适的单词,并注意其正确形式, 首字母已给出。
小题1:Wang Wei is very stubborn, so it is not easy for her to change her m___________.
小题2:If you have some trouble, you can go to the teacher for a_________.
小题3:Though he is a n________ English speaker, he can’t speak English very fluently.
小题4:I don’t think it was an accident at all. Your brother did it on p____________.
小题5:I was very excited. It took me some time to c______ down myself.
通过岩层产状的三个要素,可以表达出经过构造后的构造形态在空间的位置,不属于三个产状要素的是()。
A.倾向
B.倾角
C.倾长
D.走向