住宅室温标准一般指气湿、气流、热辐射在正常范围时,居室中央距地板()。高处的气温
A. 0.5m
B. 1.Om
C. 1.5m
D. 2.Om
E. 2.5m
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YB95型条盒透明纸包装机当操作人员发现透明纸里长外短时,逆时针旋转调节手柄,卷筒架上的透明纸朝()偏移。
下列产品属农业转基因生物的有()
A. 转基因微生物产品
B. 转基因农产品的直接加工品
C. 转基因水产苗种
D. 含有转基因动物成份的添加剂产品
战勤保障消防站晾衣室(场)的使用面积是()m2。
A. 20.0
B. 30.0
C. 40.0
D. 50.0
Which maintenance functions can a GMDSS Radio Operator perform().
A. The Operator can make fine internal adjustments to the transmitter as long as the output power does not change by more than one percent
B. The Operator is responsible for ensuring that INMARSAT antennas are free of built-up soot and clear of obstacles
C. All levels of maintenance must be performed by a licensed GMDSS Radio Maintainer
D. The Operator may install an EPROM in order to ensure that the equipment continues to operate within legal constraint