The desk was covered________ papers.
A. on
B. in
C. from
D. with
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Mount Heng is a place of interest with different kinds of ______.
A. tree
B. plants
C. animal
D. flower
Both Tom ______ his brother are good at Chinese.
A. but
B. or
C. and
D. so
先锋霉素皮试液每毫升含先锋霉素为
A. 150μg
B. 500μg
C. 2500μg
D. 0.075μg
E. 50mg
黄某,换支气管炎,注射青霉素后10天自觉皮肤瘙痒,腹痛,关节肿痛,全身淋巴结肿大,考虑病人发生了
A. 皮肤过敏反应
B. 消化系统过敏症状
C. 血清病型反应
D. 呼吸道过敏症状
E. 循环系统衰竭症状