【单选题】After a certain process, the enthalpy of the system changes △H = Q P , then the process is
A.
Any process of ideal gas
B.
ideal gas isobaric process
C.
real gas isobaric process
D.
isobaric process of closed system without non volume work.
【单选题】关于tRNA不正确的是
A.
由于各种tRNA 3′末端碱基都不相同,所以才能结合不同的氨基酸
【单选题】关于tRNA不正确的是
A.
由于各种tRNA 3′末端碱基都不同,所以才能结合不同的氨基酸
【判断题】Memos can be as formal as a business letter and used to present a report.()
【单选题】A. He’s writing a report. B. He’s on a business trip. C. He’s attending a meeting. D. He’s on his holiday.
A.
He’s writing a report.
B.
He’s on a business trip.
C.
He’s attending a meeting.
【单选题】•Read the memo below about business report writing. •Choose the best word to fill each gap from A, B, C or D on the opposite page. •For each question 19-33, mark one letter (A, B, C or D) on your Answ...