Adisandhowitistransmittedarefamiliartothepublic,

问题详情：

 Adis and how it is transmitted are familiar to the public, __________ quite a few people subscribe to the belief that HIV and Aids are merely an A frican problem because of the high infection rate there.

  A. while              B. for           C. yet           D. though

【回答】

C

知识点：副词

题型：选择题