单项选择题

A．Taking pictures under water.
B．Connecting pipelines.
C．Planting sea weeds.
D．Placing explosives under the water.
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单项选择题
A．She’’ll teach the man to operate the computer.B．She doesn’’t think his sister is a good typist.C．She thinks the man should buy a computer.D．She’’ll type the letter for the man.
A．She’’ll teach the man to operate the computer.
B．She doesn’’t think his sister is a good typist.
C．She thinks the man should buy a computer.
D．She’’ll type the letter for the man.
单项选择题
The space agencies are reluctant to open up space to tourists.
A．Y
B．N
C．NG
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