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【多选题】
关于交叉配血试验，正确的描述是A.
供血者红细胞的凝集原与受血者血清的凝集素为主侧
B.
供血者血清的凝集素与受血者红细胞的凝集原为次侧
C.
主侧与次侧均不发生凝集反应为同型血
D.
主侧反应次侧不反应不能输血
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【单选题】A: How _____ is it from your school to the bus stop? B: It's not far, about five kilometers______. [ ]
A.
far; far
B.
away; far
C.
far; away
D.
away; away
【单选题】How to unleash our creativity? Begin by 'letting down your shield'. Stop being self conscious, afraid of playing the fool, and be open to experience. Next, 'erase your blackboard.' We all have blackbo...
A.
3
B.
2
C.
4
D.
5
【多选题】How to stop your teeth decay?
A.
Mouthwashes
B.
Dental floss
C.
Dental gum
D.
Teethwash
E.
Brush one's teeth
F.
Have more snacks or drinks with sugar
【单选题】How can you stop your angry thoughts?
A.
concentrate on something pleasant and enjoyable
B.
think about yelling at someone
C.
get angry more intensely to release the stress
【单选题】'______ is it from your school to the bus stop?' 'About 100 metres.' [ ]
A.
How long
B.
How far
C.
How soon
D.
How much
【简答题】According to your knowledge, how Americans stop smoking?
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