运行中的柴油机气缸盖最容易发生的缺陷是（）
A.裂纹
B.穴蚀
C.烧蚀
参考答案：C
The drawee of a cheque is（）.
A．the person who is to receive payment
B．the bank that has to make payment
C．the last person to endorse the cheque
D．the person whose bank account will be debited
尺神经由上述哪部分组成（）
A.C5～C6神经根
B.C5～T1神经根
C.C6～C8神经根
D.C6～T1神经根
E.C8～T1神经根
