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【单选题】
美洲的一种动物出生前和产后有自发性皮肤黑色素瘤,其与人黑色素瘤的病变和传播方式完全相同,这种动物是A.
猪
B.
狗
C.
猫
D.
猴
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The doctor _____ the man and found nothing serious with him. [ ]
A.
looked after
B.
looked for
C.
looked at
D.
looked over
【单选题】The consumer price index (CPI) and the producer price index (PPI) differ from each other since
A.
The PPI includes import goods but the CPI doesn't.
B.
The CPI usually rises sooner than the PPI.
C.
The composition of their market baskets is different.
D.
The PPI does not measure price increases of a fixed market basket.
【单选题】Again and again the doctor ______the crying girl, but he couldn’t find what was wrong with her.
A.
looked over
B.
looked after
C.
looked for
D.
looked out
【简答题】CPI与PPI持续处于背离状态，是符合价格传导规律的。（ ）
【单选题】The doctor ____ the old woman carefully and found something wrong with her eyes. [ ]
A.
looked at
B.
looked up
C.
looked over
D.
looked for
【简答题】变速器是由不同 的齿轮啮合,将发动机的动力传递到驱动轮上实现变速的。
【单选题】下面哪一项会导致通货膨胀指数进一步上升?()
A.
CPI 和 PPI 都涨价
B.
CPI 和 PPI 都降价
C.
PPI 涨价， CPI 降价
D.
CPI 涨价， PPI 降价
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