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【单选题】
月龄北京犬，不断用嘴磨蹭地或用抓挠面部，检查发现该犬唇部，眼睛周围皮肤发红，脱毛，有红色和脓性疱疹，腹部有黄色痂皮，采集病交接处病料镜检，发现多个大小不超过0.5mm，呈圆形，头部突出，有四对足，后两对足不超出体缘的虫体。 该病原感染本病是通过（）A.
垂直传播
B.
空气传播
C.
蚊蝇叮咬传播
D.
接触传播
E.
吞食感染性传播
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【单选题】Attandances at basketball matches have____ since the coming of television.
A.
dropped in
B.
dropped down
C.
dropped off
D.
dropped out
【简答题】After the basketball match, he still hasan important conference. She lingered long over his letter. The recruit threw the grenade 50 meters. The development of economy remains one ofthe priorities of ...
【单选题】How long has it been since the man played basketball?
A.
Less than 25 years.
B.
Less than 5 years.
C.
More than 5 years.
D.
More than 25 years.
【单选题】Attendances at basketball matches have___________since the coming of television.
A.
dropped in
B.
dropped down
C.
dropped off
D.
dropped out
【简答题】Directions: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which t...
【单选题】The boys even have no time for their homework _____ the basketball match. [ ]
A.
because of
B.
because
C.
as
D.
since
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