城乡规划行业准则要求:城乡规划行业应自觉接受社会各界的( ),共同抵制行业不正之风。
A.交流和批评B.交流和指导C.监督和指导D.监督和批评
参考答案:D
Don’t shout ______ the party. If you do, you’ll ______ leave.
A.at, must
B.of, have to
C.at, have to
D.in, must
气调保鲜间气体成分控制,一般情况下O2含量为______。
A.0~4% B.0~5% C.2%~4% D.2%~5%