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【单选题】
关于公猪采精的准备,不正确的是:( )A.
集精杯口套上过滤膜
B.
用 0.1 % 高锰酸钾溶液清洗公猪腹部及包皮，再用清水洗净并擦干
C.
集精杯放入 37℃的恒温箱中预热
D.
先将假台猪周围洒上清水
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】We walked a long way to see him off, only _____ that he had just left.
A.
found
B.
to find
C.
finding
D.
having found
【单选题】—_____ does your English teacher teach you English songs? —Once a week. [ ]
A.
How many
B.
How long
C.
How soon
D.
How often
【单选题】W h o once said “A light heart lives long” ?
A.
Jaidee .
B.
Shakespeare .
C.
Jaidee’s professor .
【单选题】－ ______ does your mother watch the Talk Show? － Once a week. A. How long B. H
A.
－- ______ does your mother watch the Talk Show? － Once a week. A. How long
B.
How often
C.
How soon
【简答题】Once off that long High Street, he found himself in some very poor parts of the town.
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