【单选题】He ______ with Prof. Smith at least four times in the past few days.
【单选题】集料的表观密度是指单位材料实体体积和(B)下的质量。
【判断题】原型变异是指对事物进行“风马牛不相及”的变异。
【单选题】We have a high regard for Prof. Joseph because he always ______ his principles.
【单选题】Prof. Wilson works seven days a week and six of them until midnight. He seems to ______energy.
【单选题】听力原文:M: Prof. Kennedy has been very busy this semester. As far as I know, he works until midnight everyday. W: I wouldn't have troubled him so much if I had known he was so busy. What do we learn from...
A.
The woman knows the professor has been busy.
B.
The woman knows the professor has run into trouble.
C.
The woman has trouble getting along with the professor.
D.
The woman regrets having taken up much of the professor's time.
【单选题】听力原文:M: Prof. Kennedy has been very busy this semester. As far as I know, he works until midnight every day. W: I wouldn't have troubled him so much if I had known he was so busy. Q: What do we learn ...
A.
The woman has trouble getting along with the professor.
B.
The woman regrets having taken up much of the professor's time.
C.
The woman knew the professor was busy.
D.
The woman knew the professor had run into trouble.
【单选题】集料的表观密度是指单位材料实体体积和()下的质量。