The formal expression of “恭请……光临” in English can be_____（）
A. “require the pleasure of the company of …”
B. “request the honor of the company of …”
C. “require the pleasure of the presence at …”
D. “request the honor of the company with …”
查看答案
Which of the following principles is NOT true in the writing of an invitation card（）
A. Invitation card should be written in the third person
B. The layout of invitation card should be arranged in a decoratively indented form
C. There are no punctuation marks at the end of each line
D. Guests’ names must be printed with their titles
Which of the following is not one of the occasions for writing a thank-you letter（）
A. for hospitality
B. for presents or contribution
C. for congratulation
D. for apology
You may borrow the book ______ you keep it clean（）
A. as long as
B. when
C. after
D. unless
把RNA转移到硝酸纤维素膜上的技术叫（）
A. Southern blotting
B. Northern blotting
C. Western blotting
D. Eastern blotting
微信支付 
支付宝支付