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【单选题】
血型的划分依据是A.
红细胞膜上凝集原的有无和类别
B.
交叉配血试验的结果
C.
血清中凝集素的有无和种类
D.
凝集原和凝集素的配合情况
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皮皮学刷刷变学霸
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【简答题】Why didn’t you come to Mike’sbirthday party yesterday? — Well, I ____, but I forgot it. A.should B. must C. should have D. must have
【单选题】Why is the woman worried?
A.
The weather is severe.
B.
The traffic is heavy.
C.
They will be late for an appointment.
D.
They won't be able to meet the client.
【单选题】Why does Mike agree to go grocery shopping?
A.
Because Mike has done with his homework.
B.
Because Mike will not go to school.
C.
Because Mike do not need to do his homework.
D.
Because Mike has no homework at all.
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