题干
weather! We can't go climbing today.
A：What bad
B：How bad
C：What fine
D：What a bad
答案(点此获取答案解析）
A
weather! We can't go climbing today.
A：What bad
B：How bad
C：What fine
D：What a bad
Si(s)+4HCl(g)； ΔH=+QkJ/mol(Q＞0)，下列叙述正确的是 ( )