第26题: [多项选择]吸附床层压力变化过快的原因有() A. 程控阀关阀速度快 B. 压控阀开阀速度慢 C. 压控阀零位不准 D. 程控阀开阀速度快 参考答案:C, D
第27题: [单项选择]Questions 22~25 are based on the following dialogue about driving.What was the woman’s problem when making a turn A. Not using her signal. B. Being in the wrong lane. C. Driving too slowly. D. Not looking over her shoulder. 参考答案:D