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问题 解答题
求下面每组数的最大公因数和最小公倍数．
15和127和818和36．
答案

（1）15=3×5，

12=2×2×3，

所以15和12的最大公因数是3，最小公倍数是：2×2×3×5=60．

（2））7和8是互质数，它们的最大公因数是1，最小公倍数是7×8=56；

（3）因为36÷18=2，即36和18成倍数关系，这两个数的最大公因数是18，最小公倍数是36．

单项选择题 共用题干题

妊娠四个月，肢体肿胀，皮色不变，随按随起，胸闷胁胀，苔薄腻，脉弦滑。

若胸胁胀痛，情志不畅加（）

A.白芍、香附

B.甘草、川芎

C.柴胡、佛手

D.柴胡、白芍

E.香附、川芎
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单项选择题

Research on animal intelligence always makes us wonder just how smart humans are. (1) the fruit-fly experiments described by Carl Zimmer in the Science Times. Fruit flies who were taught to be smarter than the average fruit fly (2) to live shorter lives. This suggests that (3) bulbs burn longer, that there is a(n) (4) in not being too bright.

Intelligence, it (5) , is a high-priced option. It takes more upkeep, burns more fuel and is slow (6) the starting line because it depends on learning — a(n) (7) process — instead of instinct. Plenty of other species are able to learn, and one of the things they’ve apparently learned is when to (8) .

Is there an adaptive value to (9) intelligence That’s the question behind this new research. Instead of casting a wistful glance (10) at all the species we’ve left in the dust I.Q.-wise, it implicitly asks what the real (11) of our own intelligence might be. This is (12) the mind of every animal we’ve ever met.

Research on animal intelligence also makes us wonder what experiments animals would (13) on humans if they had the chance. Every cat with an owner, (14) , is running a small-scale study in operant conditioning. We believe that (15) animals ran the labs, they would test us to (16) the limits of our patience, our faithfulness, our memory for locations. They would try to decide what intelligence in humans is really (17) , not merely how much of it there is. (18) , they would hope to study a(n) (19) question: Are humans actually aware of the world they live in (20) the results are inconclusive.

12（）

A.outside

B.on

C.by

D.across
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