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【单选题】
关于蛔虫病的流行病学特点,下列哪项是错误的:( )
A.
蛔虫病是最常见的肠道寄生虫病
B.
患者和带虫者是传染源
C.
人入感染期虫卵而感染
D.
吞食未受精虫卵污染的食物也可感染
E.
本病以散发多见
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whether
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【简答题】j— ǜ→ ( )
【单选题】The question came up at the meeting we had enough money for our research. [     ]
A.
that
B.
which
C.
whether
D.
if
【多选题】三视图的投影规律,长对正指的是()两个视图.
A.
B.
C.
D.
【简答题】某建筑场地上有一水准点 A ,其高程为 H A =138.416m,欲测设高程为139.000m的室内±0标高,设水准仪在水准点 A 所立水准尺上的读数为 1.034m,试说明其测设方法。
【简答题】某建筑场地上有一水准点A,其高程为HA=138.416m,欲测设高程为139.000m的室内±0标高,设水准仪在水准点A所立水准尺的读数为1.034m,试说明其测设方法。
【简答题】三视图的投影规律,长对正指的是()两个视图。 A主、左 B主、右 C主、俯 D俯、左
【单选题】The question came up at the meeting ______ we had enough money for our re- search.
A.
that
B.
whether
C.
what
D.
which
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