A.洋务派
B.维新派
C.顽固派
D.立宪派
答案:A
It is important ______ students ______ carefully in class .
A.for, listening.
B.of , listen
C.for, to listen
D.of , to listen.
醇基压裂液是以()作为溶剂或分散介质配制的压裂液。
A.水
B.酸
C.醇
D.醛