A.Because cannabis proved to be more harmful than tobacco.
B.Because cannabis is already so widespread.
C.Because it is not known whether cannabis may be harmful or not.
D.Because cannabis is proved to be positively harmful.
听力原文:Who will lead the seminar this time?
(A) Doctor Sara, I suppose.
(B) I' ve already signed up for it.
(C) Mr. Song retired last year.
(13)
A.
B.
C.
Which of the following is NOT a feature of "digital wallet"?(Paragraph One)
A.It has already emerged in the developed countries by V. me.
B.Although it is virtual, it has the same functions with payment cards.
C.It only requires the users to enter a username and a password.
D.Its service is only provided by Visa, a card-payment network.
听力原文:Don't you think we need more time to complete this report?
(A) Because it's already late.
(B) Not really, we're almost done.
(C) Tomorrow, if you like.
(31)
A.
B.
C.
听录音,回答以下问题:
A.It develops very fast in the past few years.
B.It has already reached its peak.
C.It keeps a steady development in the past few years.
D.It is a newly developed industry.
听力原文:W: I feel like it's only been a few weeks since school started.
M: And it's already almost time for the final exams!
W: How time flies!
Q: What do the speakers imply?
(19)
A.Even though finals are over, they still have to study for a few more weeks.
B.They've been in school a few weeks.
C.They are studying hard for their finals.
D.The school year seemed to go by very quickly.
[A] took down with business
[B] came down to business
[C] settled down with business
[D] got down to business
A.Knowledge of general business English.
B.Knowledge of special business English in particular jobs.
C.Knowledge of general English in all industries.
D.Knowledge of culture in English-speaking countries.