问题
选择题
蝗虫的体表有（ ）可以起到保护和支持的作用，还能防止水分散失。
A．皮
B．鳞
C．甲
D．外骨骼
答案
答案：D
蝗虫的体表具有外骨骼，外骨骼具有保护和支持的作用，还能防止水分散失。
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蝗虫的体表有（ ）可以起到保护和支持的作用，还能防止水分散失。
A．皮
B．鳞
C．甲
D．外骨骼
答案：D
蝗虫的体表具有外骨骼，外骨骼具有保护和支持的作用，还能防止水分散失。
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| Wouldn't it be great if we didn't have to remember passwords (密码) ever again? If we could just sit in front of our computers and be 1 logged in (登录) Crave mentions how NECSoft Biode Logon system uses face recognition technology to log you on to Windows, rather than using a 2 . All you need is a webcam and your pretty face to 3 your PC. No more 4 , confusing passwords to remember or change every few months. After doing a little research, I found this type of 5 already available to consumers via a relatively 6 application called FaceCode. The 7 requires the use of a webcam to recognize and log PC users into their systems. You can add as many 8 as you want, provided they each have a Windows account. If the system 9 to recognize your 10 , you can recall the Windows user name and password by using a hot-key combination. | ||||
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