题干
It is said that a new play will be at the theatre.
A：try o
B：filled o
C：had o
D：put o
答案(点此获取答案解析）
D
A：try o
B：filled o
C：had o
D：put o
+RCl→ 
+NaCl；
针，把节油节电工作摆在更加突出的位置。这符合