下列哪一项不是超理智型人格的基本特征和表现？（）
A.冷漠
B.重感情
C.头脑清楚
D.研究型
参考答案：B
We should ________ our help as soon as our friends ________.[ ]
A. come up, are in need
B. afford, in need
C. offer, are in need
D. take, need
分块式水导瓦间隙允许偏差不应超过（）。
A.±0.02mm
B.±0.05mm
C.总间隙的10%
D.总间隙的5%
