【判断题】现行规范中 , 钢筋的保护层厚度指主筋到混凝土表面的距离 .
【简答题】根据码字所含的码元的个数,编码可分为()编码和()编码。
【单选题】根据码字所含的码元的个数,编码可分为____编码和____编码。
【判断题】在现行规范中,钢筋的保护层厚度是指主筋到混凝土表面的距离。
【单选题】What does Dave do first to place his order?
A.
He types in his account.
B.
He calls in his shopping list.
C.
He talks to the computer.