单选题 Universities usually give diplomas or certificates to students who complete course requi-rements adequately.
A. responsibly B. sufficiently C. patiently D. successfully

【正确答案】 B
【答案解析】[解析] adequate adj．“适当的，足够的”，该词在含义上与sufficient (adj．充分的，足够的)接近，因此它们的副词结构adequately和sufficiently词义接近。该句的含义是“大学将给已经满足了课程学习要求的学生颁发文凭或证书”。responsibly adj．“有责任地，可靠地”。