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【单选题】
猪蛔虫最主要的致病作用是( )。A.
免疫损伤
B.
. 继发感染
C.
毒素作用
D.
机械性损伤
E.
夺取宿主营养 【答案】
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举一反三
【简答题】大气压随高度的增加而 ______，还与季节和天气有关．
【简答题】There was a young man named Bill in England. Before leaving school, he began to look for a job. Few companies needed new clerks due to the financial cr（金融危机）at that time. It became harder and hard...
【简答题】根据短文内容判断正（T）误（F）。 There was a young man named Bill in England. Before leaving school, he began to look for a job. Few companies needed new clerks due to the financial cr (金融危机) at that time. It be...
【单选题】The master ______ in delivering the goods to the consignee named in the bill of lading on production thereof，or to the first person who presents a properly indorsed bill of lading．
A.
justifies
B.
justified
C.
is justifying
D.
is justified
【单选题】The man named Bill looked at the picture of Tom and was ________.
A.
Unhappy
B.
surprised
C.
tired
D.
crying harder and harder
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