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【单选题】
疟疾复发的机制主要是A.
肝细胞内休眠子被激活
B.
疟原虫发生抗原变异
C.
机体免疫力下降
D.
再次感染疟原虫
E.
残存红内期疟原虫重新繁殖
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【单选题】一块砖的长、宽、高之比为4:2:1,把它按 平放、侧放、竖放 三种方式放在水平桌面上。三种方式中,若桌面受到砖的最小压强为P,则桌面受到砖的最大压强为( ) A.2P B.4P C.8P D.16P
A.
B.
C.
D.
D
【简答题】听力原文：Last vacation, he took an airplane to go home.
【简答题】竖式计算． （1）308÷4=验算： （2）967÷9= （3）1.4-0.8= （4）6.7+1.5= （5）7+0.9= （6）16×3.5= （7）43×56= （8）×75=
【单选题】Joe usually ______ the bus ______ two years ago. [ ]
A.
takes; home
B.
took; to home
C.
took; home
D.
takes; to home
【简答题】一、写出下列句子的特殊句式 1.皆为 2.楚左尹项伯者,项羽季父也 3.具告以事 4.长于臣 5.将军战河北,臣战河南 6.籍何以至此 7.客何为者? 8.我持白璧一双 9.沛公安在? 10.吾属今为之虏矣 11.夺项王天下者,必沛公也。 12.竖子不足与谋
【单选题】“I took it home with me.” she said. 改为间接引语
A.
She said that she had taken it home with her.
B.
She said that she took it home with her.
C.
She said that I had taken it home with her.
D.
She said that I took it home with her.
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