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【单选题】
光生伏特效应是指半导体材料吸收光能后,在PN结上产生( )的效应。A.
电动势
B.
电流
C.
电阻
D.
磁电
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反馈参考答案：
举一反三
【单选题】吴某, 75岁,昏迷状态。近日病人骶尾部皮肤出现2cm×4cm 压疮,破溃的水泡上脓性分泌物增多,出现皮下组织感染、坏死。此时病人压疮属于
A.
淤血红润期
B.
炎性红润期
C.
炎性浸润期
D.
淤血浸润期
E.
溃疡期
【简答题】阅读理解。 We call Chinese New Year the Spring Festival. There is a name for each Chinese year. We may call it the year of Goat (山羊), the year of Monkey (猴子) or the year of Dog. And this year is the year o...
【单选题】For _____ most Chinese, the Spring Festival is ____ unique and important time of expressing and enjoying affections among family members.
A.
the; a
B.
the; an
C.
不填；a
D.
不填; an
【单选题】I want to know _____ the day after tomorrow.
A.
what he will do
B.
B .what will he do
C.
C .what he did
D.
/
【单选题】In the Chinese mind the Spring Festival is ______ with nice food and new clothes.
A.
joined
B.
related
C.
linked
D.
associated
【单选题】I want to know ________ do to help my neighbor.
A.
what I can
B.
what can I
C.
how I can
D.
how can I
【单选题】某5层住宅楼成规则矩形,二个单元共四套房,每房有半封闭阳台一个。房中线长20.00m、宽10.00m,墙厚0.24m;阳台2.5m*1.6m。该幢楼总建筑面积为()平米
A.
1076.288
B.
1080
C.
1098.072
D.
1116.288
【简答题】反竞争性抑制作用中,Vm ,Km 。
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