【单选题】台阶长度大于0.5倍洞径、小于5倍洞径,称为( )
【判断题】测量时将车身左右对称部分的界面称为零平面。( )
【简答题】Several years ago, I worked as a truck driver for a company. On Saturdays I usually spent several hours doing something to keep my truck in good condition. One Saturday, as I was cleaning my truck, I ...
【单选题】I was in the baths , ______ I didn’t hear the telephone, which was ringing several times.
【简答题】It was ______ that we went fishing in the fiver. A.very nice weather B.so nice a weather C.such a nice weather D.such nice weather
【单选题】—Jenny,how did your math exam go? —I thought I ________,but in fact I came in the top 10% in the class.
【单选题】I know a little bit about France as my wife and I ______there several years ago.