热点中断个数占总数的20%及以上属于()。
A.WLAN网络重大故障
B.WLAN网络严重故障
C.WLAN网络重要故障
D.WLAN网络一般故障
参考答案:A
— What do you think of my answer to the questions?
— Sorry. What's that? I _____ about something else.[ ]
A. thought
B. had thought
C. am thinking
D. was thinking
商务谈判是以()为目的,以()问题为核心的。