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【单选题】
关于Rh血型鉴定,错误的是A.
严格控制介质浓度及抗原抗体比例
B.
设置对照系统
C.
Rh抗原与相应抗体形成的血凝块较脆弱
D.
对照系统包括阴性对照和阳性对照
E.
严守操作规程
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
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A.
was there
B.
used it
C.
didn’t there
D.
used there
【单选题】Where does the man decide to meet these people? 查看材料
A.
In the factory．
B.
In the office．
C.
In the man' s home．
【单选题】There used to be a tower here, ?
A.
usedn ’ t it
B.
used there
C.
didn ’ t it
D.
didn ’ t there
【单选题】There used to be a tall tree in front of our classroom, ____? [ ]
A.
used there
B.
didn't there
C.
wasn't there
【单选题】There used to be a coffee shop next to your house , ?
A.
wasn’t there
B.
didn’t there
C.
wasn’t it
D.
didn’t it
【简答题】There used to be a term that was used to describe someone who drove their vehicles down the highway while staring at the scenery. These drivers just drove slowly, taking their own sweet time, as if th...
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【单选题】There used to be a tower here, ?
A.
usedn ’ t it
B.
used there
C.
didn ’ t it
D.
didn ’ t there