问题
选择题
Nobody witnessed the accident, so people reached a conclusion about the possible cause of the accident.
A.alternative
B.brilliant
C.competent
D.tentative
答案
答案:D
词义辨析。Alternative两者择一的;brilliant杰出的;competent有能力的;tentative试探性的,假设的。没有人目睹事故,所以人们只能对事故的可能起因得出假设性的结论。选D。