流体的切应力与有关,而固体的切应力与有关。
参考答案:
剪切变形速率;剪切变形大小
X、Y、Z、M、W为原子序数依次增大的5种短周期元素。X的质子总数与电子层数相同,Y、Z、M同周期且相邻,W原子核外电子数是M原子最外层电子数的2倍。Z与其同主族的短周期元素可形成常见气体甲。X、Y、Z 3种元素形成化合物乙。下列说法不正确的是
A.原子半径:W>Y>Z>M>X
B.化合物乙中一定只有共价键
C.由W元素形成的单质以及W与Z两元素形成的化合物都是原子晶体
D.X分别与Y、Z、M、W形成的常见化合物中,稳定性最好的是XM,沸点X2Z>XM
—Could you tell me ________________?
—I don’t know. It seemed to be cool, powerful and confident.
A.why “Carrier Style” is known to all in China
B.when was “Carrier Style” so popular in China
C.where “Carrier Style” is popular
D.how was “Carrier Style” well-known in China