【判断题】准实验是一种不科学的实验类型,因为它未选择随机分配被试,且不能有效控制无关变量。
【单选题】英国共同农业政策的摊款回扣问题是在哪次会议上解决的?
【单选题】英国共同农业政策的摊款回扣问题是在哪次会议上解决的?
【单选题】It’s raining heavily, we decided _____ at home and watch TV . [ ]
【单选题】I would rather at home than football. It’s too hot outside.
【单选题】It's raining heavily outside. Let's ______. [ ]
【单选题】_____ your turn when the traffic lights are red. [ ]
【单选题】You are preparing to slush a stay on your vessel by lowering yourself down the stay in a bosun’s chair.The proper way to do this is to ride down the stay on a riding shackle().
A.
with the pin of the shackle riding on the stay
B.
with the pin of the shackle through the chair's bridle eye
C.
with a hook attaching the chair to the riding shackle
D.
connected to a second shackle on the chair