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图是该小组的同学在调查中发现的甲病（基因为A、a）、乙病（基因为B、b）的家庭系

谱图。请据图回答：

Ⅲ2的基因型是（）

答案

参考答案：aaXBXB或aaXBXb

单项选择题 A型题

下列哪项不正确（）

A.正常人肝脏可达右锁骨中线肋缘下1cm

B.正常人肝脏可达剑尖下3cm

C.正常人脾脏肋缘下可摸到

D.正常人可触及右肾下极

E.正常人左下腹部可摸及乙状结肠
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单项选择题

Which of the following best completes the passage below "Government" does not exist as an independent entity defining policy. Instead there exists a group of democratically elected pragmatists sensitive to the electorate, who establish policies that will result in their own reelection. Therefore, if public policy is hostile to, say, environmental concerns, it is not because of governmental perversity but because elected officials believe that

A．environmentalists would be extremely difficult to satisfy with any policy, however environmentally round.

B．environmental concerns are being accommodated as well as public funds permit.

C．the public is overly anxious about environmental deterioration.

D．the majority of voters vote for certain politicians because of those politicians’ idiosyncratic positions on policy issues.

E．(E) the majority of voters do not ply wish for a different policy.
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