氯气有剧毒,对眼睛和呼吸系统的粘膜有极强的刺激性,在肺中发生淤血和水肿,空气中最高允许浓度为0.002mg/L,超过2.5mg/L人吸入后立即死亡。()
参考答案:对
He is made ______ monitor of our class.
A.a
B.the
C.one
D.不填
If you have any comment about these clauses,do not hesitate( ).
A.make B.makingC.being made D.to make