题目内容

It can be inferred from the second paragraph that ______.

A. the regulatory approval is limited with respect to the scope of application
B. the life expectancy will not be improved compared with that indicated by the current record
C. America's Food and Drug' Administration gave its approval to a new type of artificial heart
Doctors will implants the new device in patients whose hearts are about to fail

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According to the text, the author places interpretation on ______.

A. a term
B. a slang
C. a humor
D. a motto

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甲、乙双方于2006年4月1日签订一份建筑材料购买合同，合同约定一旦乙收回前欠应收账款，立即给甲的银行账户汇款购买其材料，并约定如果一个月内不能履行，则合同失效。4月10日，乙的银行账户收到15万元前欠货款，乙于当日即向甲汇款，履行了合同。根据《中华人民共和国合同法》的规定，这份购买合同的生效日期是()。

A. 2006年4月1日
B. 2006年5月1日
C. 2006年4月10日
D. 2006年5月10日

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Mr. Bush's attitude toward the public's remarks is ______.

A. consent
B. hesitation
C. denial
D. approval

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It can be inferred from the last paragraph that ______.

A. new methods to prevent terrorism on aero-planes are not a panacea
B. new equipment will be mass-produced commercially over the next 12 months
C. new methods are readily monitored by security staffs at the airport
D. new equipment can only detect minute traces of explosive

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