呼吸道病毒不包括()
A.流感病毒
B.麻疹病毒
C.柯萨奇病毒
D.腮腺炎病毒
E.风疹病毒
参考答案:C
Mr.Morgan can be very sad__,though in public he is extremely cheerful.
A.by himself
B.in person
C.in private
D.as individual
组成冰岛的岩石主要是()
A.砂岩
B.岩浆岩
C.石灰岩
D.页岩