由APUD细胞发生（）。
A.肺鳞状细胞癌
B.小细胞癌
C.肺腺癌
D.肺泡细胞癌
E.恶性间皮瘤
参考答案：B
She went to the bookstore and bought _____.[ ]
A. dozen books
B. dozens books
C. dozen of books
D. dozens of books
以下驾驶模式不具有追踪功能的是（）.
A.SM
B.ATO
C.RM
D.AR
