【单选题】This passage talks mainly about ______ .
A.
when and how the umbrella was invented
B.
why the umbrella was so popular in Europe
C.
the development of the umbrella
D.
the history and use of the umbrella
【单选题】The passage mainly talks about__________.
A.
how to become a superstar
B.
Michael Jackson and Muhammed Ali
C.
superstars who are like the stars in the sky
D.
the meanig of the two words 'super' and 'star'
【单选题】如果神经纤维动作电位持续时间为2ms,那么,该神经纤维每秒内所能产生和传导的动作电位数不可能超过
【简答题】单词考查 (共10小题,满分20分) 小题1:He was found in ____________(拥有) of drugs and was accused. 小题2:To t_____________(改造)hills into fields is an extremely tough job. 小题3:It was a long journey, but we e____________ ...
【单选题】This passage mainly talks about ______.
A.
the definition of success
C.
how to achieve success
D.
the importance of goals
【单选题】20090202 下列叙述中,不正确的是 (2)
A.
计算机中的信息可以很容易被复制和窃取,但一定会留下痕迹
B.
计算机软件、硬件设计上的漏洞往往会被攻击者利用,因此,要加强计算 机系统的安全防护
C.
计算机属于高科技设备,供电的稳定性,环境的温度、湿度等会造成数据信息丢失或系统运行中断
D.
计算机中的信息主要保存在存储介质上,因此,存储介质的安全措施也是 重要的一个方面
【单选题】下列关于影响能量代谢的因素哪一.项不正确
C.
能量代谢在环境温度20~ 30° C时最为稳定