将图中果酒发酵装置改装后用于探究酵母菌呼吸方式的实验,下列相关操作错误的是( )
A:探究有氧条件下酵母菌呼吸方式时打开阀a
B:经管口3取样检测酒精和CO2的产生情况
C:实验开始前对改装后整个装置进行气密性检查
D:改装时将盛有澄清石灰水的试剂瓶与管口2连通
下列词语中,描写天气的是( )
A: Excuse me. Is there a ____ near here?
B: Yes, there is.
A: Where is it?
B: It's ____the science museum.
A: Is it____
B: No, it isn't. Go straight to the first crossing and then turn ____
A: OK. I'll ____there. Thanks.