【简答题】下列四种电子构型的原子中(n=2、3、4)第一电离能最低的是( )。 (A) ns 2 np 3 (B) ns 2 np 4 (C) ns 2 np 5 (D) ns 2 np 6
【单选题】If you are really sleepy or tired, you can ( ).
C.
have a cup of coffee or tea
【判断题】If you are really tired , you can stop having a rest for 10 minutes.
【简答题】If you are really tired, you can stop______ (have) a rest for 10 minutes.
【简答题】If you are really committed to sustainable farming, Kahang is a great place to .
【单选题】听力原文:If you are really to become a good writer, what should you do? (12)
A.
To read more and more.
B.
To write more and more.
C.
To study more and more.
D.
To remember more and more.
【单选题】'No, thanks, I don't smoke.' If you are really addicted to smoking and want to【C1】______, that may be the hardest thing you ever have to say. 'I don't smoke' has become an attitude of【C2】______ there ...