Oracle数据库可以存储极大的对象，CLOB表示（）大对象。

显微镜对光时，应先转动转换器使______倍物镜正对通光孔，当转动粗准焦螺旋使镜筒下降时，眼睛应注视______．

Research on animal intelligence always makes me wonder just how smart humans are. (91) the fruitfly experiments described in Carl Zimmer’s piece in the Science Times on Tuesday. Fruit flies who were taught to be smarter than the average fruit fly (92) to live shorter lives. This suggests that (93) bulbs burn longer, that there is an (94) in not being too terrifically bright.
Intelligence, it (95) , is a high-priced option. It takes more upkeep, burns more fuel and is slow (96) the starting line because it depends on learning—a gradual (97) —instead of instinct. Plenty of other species are able to learn, and one of the things they’ve apparently learned is when to (98) .
Is there an adaptive value to (99) intelligence That’s the question behind this new research. I like it. Instead of casting a wistful glance (100) at all the species we’ve left in the dust I.Q. wise, it implicitly asks what the real (101) of our own intelligence might be. This is (102) the mind of every animal I’ve ever met.
Research on animal intelligence also makes me wonder what experiments animals would (103) on humans if they had the chance. Every cat with an owner, (104) , is running a small-scale study in operant conditioning, we believe that (105) animals ran the labs, they would test us to (106) the limits of our patience, our faithfulness, our memory for terrain. They would try to decide what intelligence in humans is really (107) , not merely how much of it there is. (108) , they would hope to study a (109) question. Are humans actually aware of the world they live in (110) the results are inconclusive.

A．thinner

B．stabler

C．lighter

D．dimmer

早、中期食管癌常用的手术方法是（）

A.食管胃转流术

B.食管癌切除，用结肠食管重建术

C.食管癌切除，用胃食管重建术

D.食管癌切除，用空肠食管重建术

E.胃造口术

下列分选末煤效果好是哪种重介质旋流器（）

A、DSM型圆柱圆锥形

B、涡流旋流器

C、DBZ型圆柱圆锥形

D、沃塞尔圆筒形二产品旋流器

机架与地面固定时，应由（）只M10—M12的膨胀螺栓与地面加固，条件允许时，机架上部应与线槽作连接加固。

A.1

B.2

C.3

D.4