There is no point advocating banning smoking in public ________ the law is intr
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There is no point advocating banning smoking in public ________ the law is introduced.A.when | B.unless | C.since | D.because |
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答案
B |
解析
B 考察连词。句义:除非成为法律条文,否则在公共场所倡议禁止吸烟是没有意义的。When当..时;unless除非;since自从;because因为;故B正确。 |
举一反三
________ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.A.Even if | B.As far as | C.If only | D.So long as |
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