A nurse has to take care not to ______ air into the bloodstream of her patients.
【正确答案】 A
【答案解析】护士必须小心，避免将空气注入病人的血流中。A．inject“注射” B．eject“驱逐，喷射”C．reject“拒绝，抵制” D．subject作动词意为“使……隶属，使屈从于……”