【单选题】The old man keeps coughing________. I’m afraid you have to send him to hospital.
A.
between morning to night
C.
between morning and night
D.
from morning and night
【判断题】在一定接触时间内,一定反应温度和反应物配比下,主反应的转化率愈高,说明催化剂的活性愈好。
【单选题】(2013·高考辽宁卷)—I’m afraid you have the wrong number. —Sorry!________.
D.
I hope I didn’t bother you
【单选题】I’m afraid you have to get your room ____________. It’s too dirty and messy!
C.
to clean C. cleaned C. to be cleaned
【简答题】物流合同担保的主要方式有 、 、 、 、 。
【判断题】在一定接触时间内,一定反应温度和反应物配比下,主反应的转化率愈高,说明催化剂的活性愈好。
【简答题】--I’m afraid you have the wrong number. ---Sorry.______. A.See you later B.I didn’t know that C.Hold on please D.I hope I didn’t bother you.
【单选题】—Hello! May I speak to Lucy,please? —Sorry,I’m afraid you have the wrong .