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【单选题】
有关头孢菌素类药物叙述不正确的是A.
对β内酰胺酶均不稳定
B.
抑制细菌细胞壁合成
C.
与青霉素有部分交叉过敏反应
D.
对繁殖期的细菌有杀菌作用
E.
与青霉素类一样属于β-内酰胺类
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举一反三
【简答题】After Taubenberger and his colleagues worked 10 years, the great success they have achieved is that _________________.
【简答题】The man was sentenced to 10 years in prison after he was accused of bri______ a senior bank official.
【单选题】After 10 years of hard work , the lady has turned into a movie star, _________ she dreamed of becoming in her childhood.
A.
whose
B.
what
C.
that
D.
which
【单选题】A friend of mine, after 10 years of studying ballet, succeeded ________ becoming a dancer.
A.
in
B.
on
C.
with
D.
of
【简答题】A．Almost 10 years. B．A few years. C．A couple of months. D．Three days after the wedding.
【简答题】计算下列表达式 "123" + "314"
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