单选题 The public is very ______ about the governor's plans for a tax cut.
A. susceptible B. dubious C. vulnerable D. deliberate.

【正确答案】 B
【答案解析】[解析] (dubious半信半疑的)。句意为：大众十分怀疑州长的减税计划。A．susceptible易受影响的；C．vulnerable易受伤的；D．deliberate深思熟虑的。