神昏早期病机为______。

―Karen, can I talk to you for a minute?

―Sure, ________?

A．how come

B．what’s up

C．how’s that

D．what for

有下列程序：
main()
int t, a=1, b=5, c=-2;
while(a＞b＞c)
t=a; a=b; b=t; c++;
printf("%d, %d, %d", a, b, c);

A．1, 5, 0

B．1, 5, -2

C．5, 1, -1

D．5, 1, -2

Your vessel has lifeboats on both sides. Lifeboat No. 2 is located（）.

A.forward of lifeboat No. 4 on the starboard side

B.forward of lifeboat No. 4 on the port side

C.aft of lifeboat No. 1 on the starboard side

D.All of the above

挂瓦条必须钉在顺水线上，如赶不上顺水条档子时，应在接头处加垫顺水条。( )

某局BSC从BSC31升级为BSC32后，告警台上出现大量的CCCH负载指示告警（主要是BTS30基站），在MSC侧出现“BSC过载”和“BSC过载指示”告警。该局BSC为BSC3203.0520B版本，下带BTS20和BTS3X基站。

除参数“RACH忙门限”和“RACH平均负载时隙”设置的不合理之外，另外还有什么原因会导致“CCCH过载告警”？