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【判断题】
某毛重2500克,出材率60%,其损耗率应为40%。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】结核分枝杆菌经抗酸染色后呈红色是因为
A.
所用的碳酸浓度过高,不易被脱色
B.
结核分枝杆菌含脂质较多,盐酸酒精不易使之脱色
C.
脱色所用盐酸酒精PH过低,不易使结核分枝杆菌脱色
D.
美蓝不能用于染细菌
E.
结核分枝杆菌细胞壁含糖多,不易被酒精脱色
【单选题】What is the speaker's relationship to the person they describe?
A.
They're classmamtes.
B.
They're friends.
C.
She's his new teacher.
【简答题】论述有限责任公司和股份有限公司的异同点?
【单选题】Enough______ to stop the forest______ since the 1980’s.
A.
has been done;be cut down
B.
has done;cutting down
C.
has been done;being cut down
D.
had done;from being cut down
【单选题】Georgealways wants things done quickly ． He ’ s got to .
A.
． idea
B.
． means
C.
． patience
D.
． decision
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