泡沫灭火系统水平管道坡度的检查方法:用()检查。
A、水准仪
B、水平仪
C、经纬仪
D、钢尺
参考答案:B
Is it _____ Li Na, a Chinese famous tennis player, has achieved at the French Open _____ you are
happy so much?[ ]
A. what; that
B. that; what
C. that; it
D. it; that
市场调节就业配置劳动力资源的基础性调节手段是()
A.劳动者自主择业
B.政府促进就业
C.市场机制
D.用人单位自主用人