【简答题】压力容器标有“II M S”表示什么意思?
【单选题】打字时的坐姿、手形和手指的互相调节,都是很重要的,下面的哪种说法是错误的
A.
打字时应选高度适中的座椅,身体坐直,十指放在规定的键上。
C.
除了十个手指敲键盘外,上半身其它部位不能接触工作台或键盘。
D.
打字时拇指除了敲空格键外,还能敲Alt和Ctrl键。
【单选题】With his lips still _______ ,he couldn’t say a word.
【单选题】A diesel engine should not be operated at low loads for long periods of time because_____
A.
heavy carbon deposits will buildup on the valves and in the exhaust
B.
fuel dilution is increased at low load
C.
exhaust valves may be damaged
【单选题】He has a______ habit of biling his lips when he is puzzled.
【单选题】At that time, the poor girl can’t but ________ all her belongings at a low price.
【单选题】The soldier stood there ___ , except that his lips moved a little as if he was saying to himself.
【单选题】I seemed to be pretty good___ reading his lips after a while, even better than the nurses that were caring ___ him.
【单选题】In a time of low academic achievement by children in the United States, many Americans are turning to Japan, a country of high academic achievement and economic success, for possible answers. However,...
A.
Japanese parents are more involved in preschool education than American parents
B.
Japan's economic success is a result of its scientific achievements
C.
Japanese preschool education emphasizes academic instruction
D.
Japan's higher education is superior to theirs.