大风浪中掉头要特别注意,当出现较弱的波浪和艇处于:
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What is suggested about Ms. Patterson?
A. Her house has three rooms.
B. Her house will be rented for the summer.
C. She will clean her carpet on her own.
D. She will receive a discount on a future cleaning.
产品包括()。
A. 有形产品和无形产品
B. 固体、流体、气体
C. 有意识产品和无意识产品
边长在()cm以上的洞口,四周设防护栏杆,洞口下张设安全平网。
A. 90
B. 120
C. 150
D. 200
夜间在海上,你船看到他船的号灯为品字形三盏绿灯,且在中间这盏绿灯下方还有一盏白灯,则说明驶近该船___米以内是危险的。
A. 10000
B. 5000
C. 1000
D. 500