每部测试仪表包括附件和插件等,均应建立机历卡,并备有上级计量部门的合格证书,保持良好的状态。各种测试仪表()应送检一次。
A.三个月
B.半年
C.一年
D.一年半
参考答案:C
以下不属于统计违法违纪行为处分种类的是()。
A.警告
B.降级
C.降职
D.撤职
—How about ______ in the river with us —Sorry, I can't. My parents often tell me ______ that.
A. swim; don't do B. swim; to doC. swimming; not do D. swimming; not to do