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【单选题】
由于MRI是利用磁场与特定原子核的核磁共振作用所产生信号来成像的，MRI系统的强磁场和射频场有可能使心脏起搏器失灵，也容易使各种体内金属性植入物移位，在激励电磁波作用下，体内的金属还会因为发热而造成伤害。下列不是MRI禁忌证的是（）A.
有心脏起搏器者
B.
中枢神经系统的金属止血夹
C.
装有铁磁性或电子耳蜗者
D.
体内有人物
E.
妊娠7个月
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举一反三
【单选题】In my opinion, ______ we’re home for the holidays, it doesn’t mean we should spend all our time watching TV.
A.
as though
B.
even if
C.
now that
D.
as for
【单选题】--- Could you please help me with my English? ---________.
A.
You’re welcome
B.
It’s a pleasure
C.
It’s very kind of you
D.
That’s a good idea
【单选题】—Whose shoes are these? —They're ____ shoes. They're ____ . [ ]
A.
mine; my
B.
my; my
C.
mine; mine
D.
my; mine
【单选题】You haven* t wasted my time on the______ , you've helped me save some time.
A.
contrary
B.
reverse
C.
opposite
D.
contrast
【单选题】So I created a schedule that would ________ my time up between going to class, doing homework and relaxing.
A.
fix
B.
divide
C.
put
D.
build
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