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【多选题】
有核吞噬细胞的叙述,正确的是A.
能生成血栓素和前列腺素
B.
能生成白三烯
C.
能生成 H 2 0 2
D.
能生成NADPH
E.
糖酵解是唯一产能途径
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举一反三
【单选题】We all agree that the products of this factory are of better ________.
A.
quality
B.
quantity
C.
principal
D.
identity
【单选题】The first place _______ in the factory was the tool room.
A.
where we visited
B.
we visited in
C.
we visited
D.
which we visited
【单选题】巴比妥类药物与碱共沸，水解释放出氨气，是由于
A.
分子结构中含有硫元素
B.
分子结构中含有丙烯基
C.
分子结构中含苯取代基
D.
分子结构中含有羰基
E.
分子结构中含有酰亚胺基团
【单选题】Only the factory ____ yesterday ____ this kind of machines.
A.
did we visit; does it produce
B.
did we visit; produces
C.
we visited; produces
D.
we visited; does it produce
【单选题】If there is a shortage of factory laborers, we would expect
A.
the wages of factory laborers to increase.
B.
the wages of factory laborers to decrease.
C.
the prices of factory commodities to decrease.
D.
a decrease in the demand for substitutes of what this factory produce.
【简答题】巴比妥类药物分子结构中含有丙二酰脲基团，其特性反应为
【单选题】鉴别巴比妥类药物的硝化反应，主要是利用该类药物结构中的
A.
不饱和碳氧双键
B.
不饱和碳氮双键
C.
互变异构中形成是羟基
D.
取代基中含有的双键
E.
取代基中含有的苯环
【单选题】The factory________ we visited yesterday was the one _______ I once worked.
A.
where; which
B.
which; which
C.
which; where
D.
where; where
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