相对运动的配合件,两个摩擦表面上实际接触面积很小,只有少数微凸起处接触,而在未接触部分的摩擦表面可能形成()的状况。
A.相互平行
B.相互嵌入
C.相交
D.相互倾斜
参考答案:B
将写有“d”字的透明纸片放在载玻片上,制成玻片标本。用显微镜观察时,在视野里看到的将是
A.b
B.d
C.q
D.p
Pip ______ a gentleman and ______ Estella’s love, who is a beautiful girl.
A.is bent to becoming; winning
B.is bent on becoming; win
C.is determined to become; winning
D.is determined to become; win