怎样选择苗圃地？
在Windows资源管理器窗口中可以只列出文件名。
During the watch at sea, where situations occur in the machine apace which may affect the speed maneuverability, power supply or other essentials for the safe operation of the ship（）should be informed as soon as possible. the chief engineer。 the master。 the bridge。 the company superintendent。
TV二次侧为什么不许短路？
Relative humidity is the percentage of water vapor that is in the air as compared to the maximum amount it can hold at（）. a specific barometric pressure。 a specific temperature。 a specific wind speed。 any time。
下图为我国部分城市穿衣指数。
拉萨与武汉穿衣指数相同的主要原因可能是（）
