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【单选题】
关于钩端螺旋体的叙述，正确的是A.
钩端螺旋体不能在人工培养基上生长
B.
钩端螺旋体可以引起肺部感染
C.
钩端螺旋体病不是一种人畜共患病
D.
钩端螺旋体的感染途径主要是消化道感染
E.
钩端螺旋体的主要传染源是节肢动物
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【单选题】It’s very common _____ that people ______ went to school for further education.
A.
in the 1990; in the fifty
B.
in the 1990s; in their fifties
C.
in their 1990s; in their fifties
D.
in their 1990s; in the fifty
【简答题】阅读理解。 Online shopping has become something very common for young people, however, it's not easy for the old people to buy things on the internet. Therefore, offline Daigou stores, or buy-for-you store...
【单选题】应用文的特点是( )．
A.
实用性、针对性、时效性、规范性、论说性
B.
实用性、针对性、时效性、灵活性、论说性
C.
实用性、针对性、时效性、规范性、抒情性
D.
实用性、审美性、时效性、规范性、论说性
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