This is ___________ bag. __________ bag is new.[ ]
A. a, A
B. an, The
C. a, The
答案:C
-They arrived __________ Guangzhou __________ a rainy morning.
A.in; in
B.at; in
C.in; on
D.at; on
下列各项中,不属于过敏反应特点的是()
A.发作迅速
B.破坏组织细胞
C.消退较慢
D.反应强烈