If it were not for the fact that she sing,I would invite her to the party. A.couldn’t B.shouldn’t C.can’t D.might not 答案:C 考查情态动词的用法。题中that引导同位语从句。“she can’t sing”是一个事实,是指在能力、技能等方面不能、不会。 BaCl2有剧毒,致死量为0.8g,万一不慎误服,应大量吞服鸡蛋清解毒,并加服一定量的解毒剂,此解毒剂是( )。
A.AgNO3
B.CuSO4
C.Na2CO3
D.MgSO4