【单选题】【消耗次数：1】
______ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.
①
Even if
②
As far as
③
If only
④
So long as
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相关题目
【单选题】
They _ on the programme for almost one week before I joined them, and now we on it as no good results have come out so far.
①
had been working; are still working
②
had worked; were still working
③
have worked; were still working
④
have worked; are still working
【单选题】
At that time, the committee, so far as I know, _______ of three scientists, two professors, and four senior engineers.
①
composed
②
comprised
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consisted
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made up
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Planning so far ahead _____ no sense -- so many things will have changed by next year.
①
made
②
is making
③
makes
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has made
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With so much I am not sure if Ill have time for the game.
①
do
②
doing
③
did
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to do
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Some scientists____________ that flowers open at particular times because their internal clocks tell them to do so.
①
receive
②
make
③
believe
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talk
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The old couple, whose kids have all passed away, have to ( ) only with their small pensions.
①
get at
②
get to
③
get by
④
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A： How long have you been here?B： Not for long, only about five minutes. Alice and Monica ______ here with me.
①
have walked
②
had walked
③
were walking
④
walked
【单选题】
I am not sure whether I can gain any profit from the investment, so I can’t make a(n) ____ tohelp you.
①
exact
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defined
③
definite
④
sure
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①
how
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after
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随机题目
【单选题】
下列关于黄疸概念的叙述，错误的是
①
皮肤黏膜发黄即为黄疸
②
皮肤黏膜发黄不一定有黄疸
③
皮肤黏膜不发黄不一定无黄疸
④
黄疸多见于肝胆疾病
⑤
胆汁淤积性黄疸时可伴有皮肤瘙痒