对合并脑积水的囊性脑膜膨出患者，不应作脑脊液分流术。()
参考答案：错
承包商应在首次延期事件发生( )天内，申报延期意向。
A．7
B．14
C．21
D．28
—Would you please drive _____? My plane is taking off.
—I'd like to, but safety come's first. [ ]
A. faster
B. better
C. more carefully
D. more slowly
