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Directions : Read the following text. Choose the best word or phrase for each numbered blank and mark A, B,C, or D on, ANSWER SHEET1. A webcam is a digital camera that sends video images to other computer users. It's about the(26) 0f a pool ball and typically (27) 0n top of your computer monitor. Once the webcam is(28) to the USB port of your computer with the necessary software, (29) images of you can be sent to one or more users over the Internet (30)an instant messaging(IM) service. A webcam costs about $50. More expensive models come with added (31) , such as better picture resolution. Two leading makers, Logitech and Creative, offer a range of models, (32) software is included. There is no extra Internet (33) to send or receive video images, though you'll have t0 (34) for a free instant messaging service. Everyone can see and hear one another in (35) time. Grandparents can see their grandkids more (36)' Webcams can work with al-most any computer bought in the past five years and can (37) long distance phone bills.(38) you have broadband, that is, a high-speed cable-modem or DSL connection, images may (39) a long time to download, (40) a slide show rather than a movie. While webcams are easy to link to your computer, learning to (41)the software can take time. You have to make some rearrangement with the configurations. (42) you have a 56k modem and the people you want t0 (43) won't mind seeing live shots instead of perfect video, a webcam is still fun. (44) before you buy, be sure everyone (45) for the same IM service. 26. [A] weight [B] size [C] volume [D] space
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举一反三
【单选题】《说文解字》提出 之说,即指事、象形、形声、会意、转注、假借。
A.
六书
B.
六法
C.
六义
D.
六道
【单选题】最早的沙盘是()创建的。
A.
马超
B.
马援
C.
诸葛亮
D.
曹操
【多选题】汉字来源于原始的象形图案和指事符号。《说文解字》有“六书”,即“象形、会意、指事、形声、转注、假借”。哪“四书”讲的是造字之法:
A.
象形、会意
B.
会意、转注
C.
指事、形声
D.
象形、假借
【单选题】儿童急性白血病发生贫血时的日常照护不妥的是()。
A.
视患儿情况调整活动和休息
B.
提供高纤维、高热量、高蛋白的食物
C.
避免晕厥或受伤
D.
对于或以上贫血患儿,应协助生活自理
E.
体位变化时注意安全
【单选题】六书即六各造字方法,即象形、指事、会意、形声、转注、假借。象形即描摹事物形状的造字法,指事是以象征性的符号来表示意义的造字法,会意是由两个或多个字合起来表达一个新的意义的造字法,形声是意符和声符并用的造字法,如“上、下、本、末”,如“日、月、山、羊”,如“樱、篮、齿、吓”,如“明、旦、采、休”,分别与之对应的造字法是()
A.
象形、指事、会意、形声
B.
指事、象形、形声、会意
C.
会意、形声、象形、指事
D.
形声、象形、指事、会意
【单选题】关于玻璃体的描述,错误的是
A.
为无色透明的胶状物质
B.
位于晶状体和视网膜之间
C.
表面覆被玻璃体膜
D.
屈光度可以改变
E.
对视网膜起支撑作用
【单选题】第一心音增强见于
A.
甲亢
B.
低热
C.
心肌炎
D.
心肌梗死
【单选题】第一心音增强见于
A.
心肌炎
B.
心肌梗死
C.
心力衰竭
D.
二尖瓣关闭不全
E.
二尖瓣狭窄
【多选题】关于玻璃体的描述,错误的是( )。
A.
为无色透明的液体
B.
与维持眼压有关
C.
有屈光作用
D.
有营养视网膜的功能
E.
充满于眼球内
【单选题】关于玻璃体的描述哪项错误
A.
为无色透明的胶状体
B.
有支撑视网膜的作用
C.
有屈光作用
D.
损伤后可以再生
E.
有一些透明细胞
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