我国国际收支调节的目标是( )。
A．国际贸易顺差
B．国际贸易逆差
C．国际收支基本平衡
D．增加外汇储备
参考答案：C
—Hi, Jack! I never thought I would meet you here. _______?
—Fine. Thank you. And you?
A．How is your job
B．How are you getting on with your new job
C．Lovely weather, isn't it
D．How are you
命题“存在x0∈R，2x0≤0”的否定命题是．______．
