单选题 Please note that neither Dr. Johnson ______ Dr. Lang is available for consultation on Monday and Friday mornings.
A. or
B. nor
C. but
D. and

【正确答案】 B
【答案解析】连词neither后跟nor。选项(A)or、选项(C)but和选项(D)and均不是neither的正确搭配。