锅炉给水调节应根据锅筒水位计进行调整，同时应考虑（）。
A.循环水流量
B.主蒸汽流量
C.排污水流量
D.减温水流量
参考答案：B, C, D
用所给单词的适当形式填空。
1. Lucy is my good friend. I love __________ very much. (she)
2. Listen! They are singing __________ in the classroom. (happy)
3. Tom, take the medicine ___________ a day after meals for a week. (two)
4. More and more foreign ___________ are interested in Panzhihua. (visit)
5. You won't have any problems ____________ the place. (find)
室内压急剧下降是（）。
A.减慢射血期
B.等容收缩期
C.快速充盈期
D.等容舒张期
E.快速射血期
