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【多选题】
含水层的基本特征是( )A.
指存在重力水的岩层或土层
B.
中要有空隙存在，并充满足够数量的重力水
C.
重力水能够在岩土体空隙中自由运动
D.
岩土层给出与透过水的数量是微不足道的
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皮皮学刷刷变学霸
举一反三
【单选题】The author was sure that the hotel survey he suggested was simpler for customers to complete.
A.
True
B.
False
C.
Not given
D.
Not sure
【单选题】He was sure that he______his wallet in the office .
A.
left
B.
would leave
C.
has left
D.
had left
【判断题】The author was sure that the hotel survey he suggested was simpler for cunstomeers to complete.
A.
正确
B.
错误
【单选题】He was sure that he______his wallet in the office.
A.
left
B.
would left
C.
had left
D.
has left
【判断题】The author was sure that the hotel survey he suggested was simpler for customers to complete.
A.
正确
B.
错误
【单选题】He was sure that he______his wallet in the office.
A.
left
B.
would leave
C.
had left
D.
has left
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