职称英语考试

【单选题】 If a fever continues to exist, a doctor should be called since this may mean that a more serious infection is present.
A．disappears
B．persists
C．perishes
D．vanishes

网考网参考答案：B
网考网解析：
to continue to exist“持续，坚持”。其余选项或多或少与“消失”有关。句子大意：如果高烧不退，就应该请医生来，因为这可能意味着有更严重的感染。 查看试题解析出处>>