【单选题】Which of the following may be the favorite of a person who has a sweet tooth?
A.
Clear soup and raw fruit.
B.
Salad and green vegetables.
C.
Mints, hard candies and fruits.
D.
Creamy desserts and chocolate.
【单选题】高强混凝土、夏季大体积混凝土、负温施工混凝土、抗冻融混凝土宜选用的外加剂分别为( )
D.
聚羧酸减水剂、木钙减水剂、早强剂、引气剂 提示:配制高强混凝土关键是采用较小的水胶比,所以应掺加高效减水剂;夏季大体积混凝土施工关键是要降低水泥水化速度,即控制水化热释放,木钙减水剂具有缓凝作用,因而适用;因在负温下混凝土强度发展缓慢,要掺加早强剂提高其早期强度;对于抗冻融混凝土,掺入引气剂,能显著提高混凝土的抗冻性。
【单选题】8 Any veteran nicotine addict will testify that fancy packaging plays no role in the decision to keep smoking. So, it is argued, stripping cartons of their branding will trigger no mass movement to qu...
【简答题】打印九九乘法表,要求格式为: 1*1=1 1*2=2 2*2=4 1*3=3 2*3=6 3*3=9 1*9=9 2*9=18 3*9=27 4*9=36 5*9=45 6*9=54 7*9=63 8*9=72 9*9=81
【简答题】设浮点数x=2010×0.110101,y=2100×(一0.1010l0),若阶码取3位,尾数取6位(均不包括符号位),按补码运算步骤计算x + y。
【单选题】在配制水中大体积混凝土时,宜选用()水泥。
【单选题】A ______ is a person who has the same job as another.