—Would you like to play basketball with me?—I’d love to, ____ work must come first.
A. but
B. and
C. or
D. so
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—Can you perform ballet or play the guitar?—I can play the guitar, but only ____.
A. very well
B. a little
C. a lot
D. very much
The man was in that shoe factory (工厂) five years ____, but now he works in a car factory.
A. ago
B. front
C. before
D. late
可用于预防乙型肝炎的人工主动免疫制剂是( )
A. 乙型肝炎疫苗
B. 胎盘球蛋白
C. 丙种球蛋白
D. 特异性高价免疫球蛋白
E. 人血清蛋白
Dane颗粒是( )
A. 甲型肝炎病毒体
B. 乙型肝炎病毒体
C. 流感病毒体
D. EB病毒体
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