【单选题】_______________is a good way for students to stop fights.
B.
Learning how to make friends
C.
Playing computer games
【单选题】Help to make a determination that fits their situations. 根据不同情况,帮他们做出选择。
D.
Study Sessions Mark is a student majoring in English, and he also takes photograph as one of his elective courses._______ is a good way to make friends for Mark. As an outstanding student, Tom is very fond of playing football and has joined the basketball team.________ is a good way to make friends for Tom. Laura has successfully become a cashier at the supermarket of the college and works on weekends._______ is a good way to make friends for Laura. Michael wants to improve himself and he has taken part in the English study session. _______ is a good way to make friends for Michael.
【判断题】The tenor of discourse refers to what part the language is playing in a particular situation of communication, for example, in what way the language is organized to convey the meaning, and what channe...
【简答题】3 铸造工艺与设备 第七次课作业 填空题: 1 、水泥自硬型砂的粘结剂是 ,普通水泥砂的硬化时间一般需要 小时。 2 、双快水泥是 的简称,能在 内凝结。 3 、水泥型(芯)砂有 水泥型(芯)砂、 水泥型(芯)砂和 水泥型(芯)砂。 4 、在Me 2 O-H 3 PO 4 分子式中, Me代表 。 5 、壳芯(型)制造方法有 和 两种。前者常用于制造壳型,后者用于制造壳芯。 6 、酚醛呋喃树脂是由...
【单选题】四种短周期元素 X、Y、Z、W的原子序数依次增大,X、W原子序数之和等于Y、Z原子序数之和。X、W两元素位于同一主族,Y元素是其所在周期中原子半径最大的元素(稀有气体元素除外),Z的单质是银白色固体,易导电,常温下不易溶于浓硫酸。下列有关推断错误的是
A.
X的氢化物的沸点高于同族其他元素氢化物的沸点
D.
Z与W两种元素形成的化合物在水溶液中不能存在
【单选题】X、Y、Z、M是4种短周期元素,其中X、Y位于同一主族,Y与M,X与Z位于同一周期。X原子最外层电子数是其电子层数 3倍。Z原子的核外电子数比X原子少1。M是同周期中半径最大的元素(除稀有气体元素),下列说法正确的是( )
A.
Y 元素最高价氧化物对应水化物的化学式可表示为 HYO 3
D.
四种元素简单离子的半径由大到小依次为Y>Z>X>M
【简答题】造型用的型砂,主要有 砂、 剂 、 物 、 等四种物质组成。
【单选题】_____is a good way for the teenagers to stop fights.A. Doing less homework B. Playin
A.
25._____is a good way for the teenagers to stop fights. A. Doing less homework
B.
Playing computer games
C.
Learning how to make friends
D.
Paying no attention to each other
【多选题】根据广西2016《费用定额》的规定,下列费用应列入企业管理费的是( )。
D.
企业职工在有碍身体健康的环境中施工的保健费用