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【简答题】
如下图，试确定二极管D是正偏还是反偏？设二极管正偏时的正向压降为0.7V，试计算U X 和U Y 的值。
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举一反三
【单选题】It is ironic that a man with such a decent dress and graceful manner ______ be a gangster.
A.
can
B.
may
C.
should
D.
would
【单选题】How should scientists behave when _____ with such a conflict?
A.
Faced
B.
facing
C.
be faced
D.
to face
【单选题】关于 “T”型管,下列哪项是正确的?
A.
下床活动时引流瓶应高于腰部
B.
拔管前必须试行夹管
C.
胆总管下端阻塞，引流量减少
D.
“T”型管阻塞时应用无菌生理盐水加压冲洗
【单选题】关于管型下列哪项是错的
A.
蜡样管型表示肾脏病变长期且严重
B.
白细胞管型提示肾脏有感染
C.
红细胞管型提示肾内有出血
D.
管型是蛋白质在肾小球内凝固而形成
E.
透明管型可见于正常人
【单选题】I have never fancied _____ such a house with such a beautiful garden. [ ]
A.
to have
B.
having
C.
to belong to
D.
belonging to
【单选题】It is irenic that a man with such a decent dress and graceful manner be a gangster.
A.
can
B.
may
C.
should
D.
would
【单选题】She has a lot of things, so she knows exactly how to deal with such a person.
A.
gone through
B.
gone on
C.
gone by
D.
gone into
【单选题】None of us think it any good _____ a contract with such a dishonest boss.
A.
to sign
B.
signing
C.
signed
D.
sign
【单选题】Oxford is a city with such a mind-blowing reputation that many who come here find themselves ______by the place and can’t wait to leave, while others, who take to it like a duck to water, find themsel...
A.
threatened
B.
intimidated
C.
deprived
D.
maltreated
【单选题】关于“T”型管护理,下列哪项是正确
A.
下床活动时引流袋应高于腰部
B.
“T”型管阻塞时应加压冲洗
C.
胆总管下端阻塞时引流量减少
D.
“T”型管一般留置一周可拔除
E.
“T”型管造影显示通畅后才考虑拔管
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