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【单选题】
操作规范-关于尿标本采集下列说法错误的是 ( )A.
会阴部分泌物过多时,清洁或冲洗会阴后再留取
B.
避免经血、白带、精液、粪便或其它异物混入标本
C.
留取尿标本前要过多饮水。
D.
采集的尿应加盖后尽快送检,在采集后2小时内成有关检查
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【单选题】—Mr. Li ______ to Mary carefully when I entered the classroom this morning. —He is very patient ______ he is young.
A.
talking; but
B.
was talking; though
C.
talks; though
D.
talked; however
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【单选题】When I entered the classroom, I saw Mary ______ at the desk and ______ a letter.
A.
seating; writing
B.
seated; wrote
C.
sitting; wrote
D.
seated; writing
【单选题】Each of the following sentences contains ONE mistake. Find it out and correct it. Jack was washing dishes then Mary knocked at the door and entered.
A.
Jack was washing dishes as Mary knocked at the door and entered.
B.
Jack was washing dishes while Mary knocked at the door and entered.
C.
Jack was washing dishes when Mary knocked at the door and entered.
D.
Jack was washing dishes as soon as Mary knocked at the door and entered.
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