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【单选题】
胃癌的主要转移途径A.
淋巴转移
B.
血行转移
C.
局部侵润
D.
直接蔓延
E.
种植转移
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【简答题】某调水枢纽工程主要由泵站和节制闸组成，其中泵站设计流量120m3/s，安装7台机组（含备用1台），总装机容量11900kW，年调水量7.6×108m3，节制闸共5孔，单孔净宽8m，非汛期节制闸关闭挡水，汛期节制闸开敞泄洪，最大泄洪流量750m3/s，该枢纽工程在施工过程中发生如下事件：
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【单选题】When oil is being consumed by passing through the engine, it usually will cause heavy ______ to come from the exhaust, particularly after the engine has idled for several minutes.
A.
black smoke
B.
blue smoke
C.
white smoke
D.
steam
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【简答题】( )Our teacher told us that James Watt ___ the steam engine. A.invented B.had invented C.has invented D.was inventing
【单选题】Was it because it snowed last night _____ you didn't come?
A.
when
B.
that
C.
so
D.
what
【简答题】某药材中含有下列化合物,其提取分离过程如以下工艺,请将各化合物填于该工艺1、2、3、4的适当位置并说明原因。
【单选题】James Watt the steam engine(蒸汽机).
A.
was inventing
B.
invented
C.
had invented
D.
has invented
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