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问题
单项选择题 B1型题
转移性右下腹痛,考虑为()
A.急性胆囊炎
B.急性阑尾炎
C.胃十二指肠溃疡穿孔
D.急性胰腺炎
E.右输尿管结石
答案
参考答案:
B
填空题
把恰当的词填到句子里。
here what how where which who may
1.
do you want to do? 2.
they are!
3.
is the silk shop? 4.
is your new teacher?
5.
I help you?
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填空题
阴极的金属表面连续地向外发射出电子的现象,称为______。
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