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【单选题】
以下关于颞下颌关节紊乱病的叙述，哪项是错误的A.
本病有自限性
B.
是多因素所致疾病，关节内微小创伤与精神心理因素是本病的两个主要致病因素
C.
3个主要临床症状是：下颌运动异常、疼痛及关节弹响和杂音
D.
并非指单一疾病，而是一组疾病的总称
E.
治疗不及时会发生关节强直
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举一反三
【单选题】He doesn’t work but he gets a good _______ from his investments.
A.
wage
B.
earnings
C.
income
D.
salary
【单选题】The boy is the equal of the girl, _____ intelligence is concerned, but he doesn’t work hard at all.
A.
as far as
B.
as soon
C.
as well as
D.
as long as
【单选题】Most publishing is now'electronic'in the sense that books, magazines, and newspapers are prepared on computers, and exist as computer files before they are printed on paper. Often there are advantages...
A.
Readers will have more accesses.
B.
Books and newspapers will be kept as computer files.
C.
It will not make any sense to keep the printed versions.
D.
Electronic publications will replace printed ones.
【单选题】He doesn’t work but he gets a good ______ from his investments.
A.
wage
B.
income
C.
earning
D.
salary
【简答题】Diagram the outer-shell electronic structures of P and F. Indicate how bonding occurs between P and F to give PF 3 . What molecular shape would you expect?
【单选题】Most electronic devices of this kind, ______ manufactured for such purposes, are tightly packed.
A.
that are
B.
as are
C.
which is
D.
it is
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