待中变反应器内气体分析合格后,人工方可进入反应器,将塞网拆除后,将催化剂卸出。
参考答案:对
When the students heard the alarm, they all hurried to they thought was an emergency exit door.
A.what
B.which
C.where
D.who
健康教育计划目标一般必须回答()
A.3个W和2个H
B.2个W和3个H
C.3个W和3个H
D.2个W和2个H
E.5个W和2个H