【简答题】(2011年湖北省技能高考)化简: ____.
【判断题】桥锁既能防止集装箱的倾覆,又能防止集装箱水平移动
【简答题】根据句意及首字母提示写单词 1. Washing hands often is one of the best ways to p__________ the spread of H1N1 flu (H1N1型流感). 2. -Will Mr Wang come to our party? -I s__________ so. 3. Should students be allowed to us...
【单选题】In the counterculture movement in the 1960s, which of the following is NOT one of the ways used by the youth to challenged conventional social norms?
【单选题】( )既能防止集装箱的倾覆,又能防止集装箱水平移动。
【单选题】Doing eye exercises _____ one of the useful ways to protect our eyes. Doing eye exercises _____ one of the useful ways to protect our eyes.
【单选题】Reading authentic writings is one of the best ways to __________our English vocabulary.
【多选题】天时即指机遇,而机遇主要指的是以下哪几种?()
【简答题】一个班进行了一次考试,教师打的是百分制成绩,现在学校要求打五级制,即90~100 分的转变为A,80~89 的转变为 B,70~79的转变为C,60~69的转变为D,60以下的转变为E。 请编写程序,输入一个学生的成绩,若是合法成绩,则输出相应的等级,否则输出不合法的提示信息。