随机区组设计的方差分析，引起数据变异原因有（）。 A.组内因素和组间因素 B.处理因

（2分）6月6日，为全国“爱眼日”今年的主题是“预防近视，珍爱光明，右图中表示某二人看物体时的光路图，要在视网膜上成清晰的像，甲需配戴的眼镜是     镜，乙需配戴的眼镜是     镜，希望同学们养成良好的习惯。

恩格斯曾有一段论述“美索不达米亚、希腊、小亚细亚以及其他各地的居民，为了想得到耕地，把森林都砍完了，但是他们想不到，这些地方今天竟因此成为荒芜不毛之地……”据此完成1—3题。

1、下列说法不正确的是[ ]

A．上述现象是大自然对人类过度开发行为的报复

B．树立整体观，在利用自然资源时，要保护生态环境

C．森林难以恢复的重要原因是气候变暖

D．人类属于自然界的组成部分，必须与之相互依存

2、上述事例说明地理环境具有[ ]

A．地域性

B．整体性

C．差异性

D．规律性

3、在全球可持续发展中，发达国家应比发展中国家承担更多的责任，这体现了可持续发展的[ ]

A．公平性原则

B．持续性原则

C．共同性原则

D．阶段性原则

Jealousy can expose romantic partners to extreme danger. It can (1) . previously harmonious relationships and can shatter (2) in a simple crashing moment. Anyone who’s read Shakespeare’s tragedy Othello--about a man so blinded by jealousy (3) he kills his wife--knows this. But as it (4) , being blinded isn’t purely metaphorical: jealousy can, literally, make us unable to see.

New research found that women who were made to feel jealous of their partners (who were also present) became so (5) by the emotion that they were unable to (6) visual targets on a computer screen. "The language of social relationships is filled with visual metaphor," write the psychology professors Steven Most and J. Laurenceau, but "the (7) of social emotions--known to affect moods, behaviors and physical health-- appears to (8) so deeply as to affect processes (9) in visual awareness."

That visual awareness involved the female members of 25 couples, (10) 19 to 20 in age, sitting near their partners at two (11) . computer screens. (12) the men looked at a series of photos that included graphic pictures of women and were asked to (13) their attractiveness, the women were (14) with pointing out landscape images (the "targets") (15) rapid streams of images. The result The more jealous the women became, the (16) they were distracted by the images on their partner’s screens, the less they could see the targets on their own screens.

So, what about male jealousy Well, the researchers didn’t test the men-at least not yet. But, (17) culture tells us anything, we’d guess the results won’t be much (18) . Until then, say the researchers, lovers, poets, and philosophers will continue to (19) whether love is blind--but we can all rest (20) that jealousy is.

Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1.17（）

A．as

B．because

C．when

D．if

麦角新碱禁用于催产和引产的原因是

A．维持时间短

B．收缩子宫平滑肌弱

C．抑制胎儿呼吸

D．孕妇血压升高

E．子宫强直性收缩

俗话说“靠山吃山”的下一句是什么？