【判断题】清管器发送过程Pig delivery process:1)关闭发送筒隔断阀门和平衡阀门Close the transfer cartridge partition valve and balance valve;2)打开放空阀,卸掉发送筒中的压力,在发送筒中压力未达到大气压力前,不能急于打开盲板Open the vent valve and remove the pressure in the ...
【单选题】What is the major advantage of the J-K flip-flop over the S-R flip-flop?跟RS触发器比较,JK触发器的主要优点是
A.
The J-K flip-flop does not have an invalid state. JK触发器没有无效状态。
B.
The J-K flip-flop is much faster. JK触发器快的多。
C.
The J-K flip-flop does not have propagation delay problems. JK触发器没有传输延迟问题。
D.
The J-K flip-flop only needs one output. JK触发器只需要一个输出。
【单选题】Sludge that has not settled in the sludge space will enter the disc stack, and ____ might be formed on the discs.
【单选题】The interests of the enterprises and the banks could ( ).企业和银行的利益会发生冲突。
【简答题】Do English language newspapers have the largest circulations (发行量) in the world?
【简答题】黄连、苦参、山豆根、穿心莲味____;枸杞子、蜂蜜味____;乌梅味____。