一般情况下，地陪不应保留旅游团的旅行证件，但若需要，可向旅游者收取。()
A．正确
B．错误
参考答案：错
在月球上，声音不能传播的原因是______．
________of the relaxing time for Chinese people every day ________in watching TV.
A．Two thirds; are spent
B．Two thirds; is spent
C．Two third; are spent
D．Two third; is spent
