[判断题]盐酸氨溴索是镇咳祛痰药.
[多选题]关于无关变量,下列说法正确的是( )A.也叫控制变量B.不会影响实验的进行C.应在实验中保持恒定D.也会影响实验的进行
[判断题]煤的发热量可用氧弹式量热计直接测定.
[多选题]常见的地下排水设施有 A.盲沟B.渗沟C.倒虹吸D.渗井
[单选题]system-view [Huawei] user-interface console 0 [Huawei-ui-consoleO] user privilege level 15 [Huawei-ui-consoleO] authentication-mode password [Huawei-ui-consoleO] set authentication password cipher huawei2012 [Huawei-ui-consoleO] quit 关于上述配置命令说法错误的是( ). A、 管理员希望通过console 口来登录和管理设备 B、 配置完成之后,管理员无法通过远程登录方式来实现设备管理 C、 通过console登录设备的用户拥有最高的用户权限级别 D、 通过console录设备的用户的密码为“cipher huawei2012”
[名词解释]吲哚乙酸类抗炎药
[单选题]理想二极管的正向电阻为( ).A.零 B.无穷大 C.约几千欧 D.以上都不对
[单选题]双圆荷载的当量圆直径d和单圆荷载的当量圆直径D的关系,D/d= A.1B.0C.5D.4
[单选题]在下列照明方式中,对于眩光的控制,我们一般不采用( ).A.直接照明B.漫射照明C.间接照明D.半间接照明
[填空题]我国现行的药品质量标准是
[单选题]当曲柄的极位夹角为( )时,曲柄摇杆机构才有急回运动.A. < 0B. θ =0C. θD. θ?0
[单选题]同步发电机的功角是( )(A) 与间的夹角(B) 与间的夹角(C) 与间的夹角(D) 与间的夹角
[单选题]对被诉具体行政行为负有举证责任的是( )A.原告B.被告C.第三人D.人民法院
[单选题]We need friends to ________, or we will feel lonely.A chatB chat toC danceD dance to
[单选题]主导产业选择中的赫希曼基准是指 A.选择具有较高的增长率和显著的规模的产业B.选择能带动其他部门的经济增长的产业C.选择需求的收入弹性高的产业 D.选择后向联系系数大的产业
[阅读理解]Believe it or not, optical illusion (错觉)can cut highway crashes. Japan is a case in point. It has reduced automobile crashes on some roads by nearly 75 percent using a simple optical illusion. Bent stripes, called chevrons (人字形), painted on the roads make drivers think that they are driving faster than they really are, and thus drivers slow down. Now the American Automobile Association Foundation for Traffic Safety in Washington D. C. is planning to repeat Japan‘s success. Starting next year, the foundation will paint chevrons and other patterns of stripes on selected roads around the country to test how well the patterns reduce highway crashes. Excessive speed plays a major role in as much as one fifth of all fatal traffic accidents, according to the foundation. To help reduce those accidents, the foundation will conduct its tests in areas where speed-related hazards are the greatest―curves, exit slopes, traffic circles, and bridges. Some studies suggest that straight, horizontal bars painted across roads can initially cut the average speed of drivers in half. However, traffic often returns to full speed within months as drivers become used to seeing the painted bars. Chevrons, scientists say, not only give drivers the impression that they are driving faster than they really are but also make a lane appear to be narrower. The result is a longer lasting reduction in highway sped and the number of traffic accidents. 1.The passage mainly discusses ________. A) a new way of highway speed control B) a new pattern for painting highways C) a new approach to training drivers D) a new type of optical illusion 【外语教育&网www.for68.com】2.On roads painted with chevrons, drivers tend to feel that ________. A) they should avoid speed-related hazardsB) they are driving in the wrong laneC) they should slow down their speedD) they are approaching the speed limit3.The advantage of chevrons over straight, horizontal bars is that the former ________.A) can keep drivers awakeB) can cut road accidents in halfC) will have a longer effect on driversD) will look more attractive4.The American Automobile Association Foundation for Traffic Safety plans to ________.A) try out the Japanese method in certain areasB) change the road signs across the countryC) replace straight, horizontal bars with chevronsD) repeat the Japanese road patterns5.What does the author say about straight, horizontal bars painted across roads A) They are falling out of use in the United States .B) They tend to be ignored by drivers in a short period of time.C) They are applicable only on broad roads.D) They cannot be applied successfully to traffic circles.
[问答题]如何确定高层建筑的风荷载和地震作用;
[单选题]由于邻二甲苯与对二甲苯、间二甲苯的结构、性质相近,因此它们混合时会形成理想溶液. A.正确B.错误C.不一定D.以上都不对
[单选题]中性点经消弧线圈接地的运行方式,在实践中一般采用( )A.欠补偿 B.过补偿 C.全补偿 D.恒补偿
[问答题]That.s a beautiful dress you have on
[单选题]在我国行政复议中作为法律适用的“依据”,但在行政诉讼中只能“参照”适用的规范性文件是( )A.法律B.行政法规C.地方性法规D.规章