我国与（）个国家海上相邻。
A.8
B.7
C.6
D.5
参考答案：A
Our manager said ________ couldn't finish his own task on time must do extra work on Saturday.[ ]
A. which
B. who
C. whichever
D. whoever
车辆型号编码时，为了避免与数字混淆，不应采用汉语拼音字母中的（）
A.“I”
B.“B”
C.“O”
D.“Z”
