使得操作数的符号位不变的移位指令是 (58) 。 A．逻辑左移 B．逻辑右移 C．算 发布时间：2018-04-05 01:07 │ 来源：www.tikuol.com 题型：单项选择题 问题： 使得操作数的符号位不变的移位指令是 (58) 。A．逻辑左移B．逻辑右移C．算术左移D．算术右移
题型：单项选择题 阅读理解。 Small children often laugh at the short ones or at someone who isn't dressed as well as they are. But asthey grow up, they learn not to hurt other people's feelings by laughing at their problems. They learn to laughat other things. Most important, they learn to laugh at themselves. Suppose you're playing a game. You make a mistake and lose. Do you become angry? Or can you laugh at yourself and hope to do better next time? Suppose you are at a special dinner. You at times spill some food.Why keep worrying about how clumsy you looked? Why not laugh it off and enjoy yourself any way? If youcan, it's a good thing you've really grown up. 1. This article is mostly about ______. [ ]A. why laughter is good for your body B. what you should laugh at C. where you may laugh D. where you may laugh at2. The writer says small children laugh at people who ______. [ ]A. have problems B. not to be worried C. dress well D. play games 3. The writer shows hot laughter could help you ______. [ ]A. not to spill food B. not to be worried C. not to enjoy yourself D. to grow up 4. The most important thing is to learn how to laugh at ______. [ ]A. jokes B. pictures C. children D. yourself 5. The writer shows how laughter could help you no to ______. [ ]A. make a mistake B. lose again C. become angry D. try again 查看答案
题型：单项选择题 风景旖旎的镜湖，各式现代建筑环湖矗立，充满时代气息。如图所示，建筑物在湖中的“倒影”是由光的_________所形成的________ (选填“实像”或“虚像”)。这些“倒影”看起来比建筑物本身“暗”一些，主要是因为建筑物的光射到水面时，有一部分发生____________进入了水中；拍摄该照片的照相机镜头相当于________透镜，这种透镜对光线具有______________作用，可用来矫正_________(选填“近”或“远”)视眼。 查看答案
题型：单项选择题 患者白细胞计数为1.5×109/L，但分类100个白细胞中遇到有核红细胞为20个，校正后白细胞应报告（）A.1.4×109/LB.1.35×109/LC.1.25×109/LD.1.20×109/LE.1.80×109/L 查看答案
题型：单项选择题 克林霉素静脉滴注时，药物浓度不宜超过（），且宜缓慢滴注，通常每分钟不超过（）。（）A.3mg/ml；40mgB.4mg/ml；40mgC.5mg/ml；20mgD.6mg/ml；20mg 查看答案