【单选题】关于垫层施工前,基层浇水湿润的说法错误的是
A.
防止基层吸收混凝土中水分,保证混凝土正常硬化
【单选题】听力原文:M: John is a head taller than Mary and Shelly. W: Yes, But Sam is much taller than John. Q: Who is the tallest among the four? (5)
【单选题】听力原文:W:Shelly's off to the mountains. M:Hmm...I never thought of her as an outdoor person. Q:What can be inferred about Shelly? (16)
A.
She is a great outdoor type.
B.
It is unusual for her to go mountain climbing.
C.
Shelly prefers mountain climbing.
D.
Shelly doesn't really like the outdoor.
【判断题】Shelly plans to work as a computer engineer.
【单选题】下列关于水泥砂浆地面施工的说法中,错误的是()。
A.
在现浇混凝土或水泥砂浆垫层、找平层上做水泥砂浆地面面层时,其抗压强度达到1.2MPa,才能铺设面层
B.
地面抹灰前,应先在四周墙上1200mm处弹出一道水平基准线,作为确定水泥砂浆面层标高的依据
C.
铺抹水泥砂浆面层前,先将基层浇水湿润,刷一道素水泥浆结合层,并随刷随抹
D.
水泥砂浆面层施工完毕后,要及时进行浇水养护,必要时可蓄水养护,养护时间不少于7d,强度等级应不小于15MPa
【简答题】通过电子轰击可以引起固体产生辐射,这叫做 (光致发光/阴极发光)。
【简答题】UEFI/Legacy Boot分别代表_____和_____。
【判断题】ROM 的每个与项(地址译码器的输出)都一定是最小项。
【单选题】My answers are ______ blue below.