儿童心理发生的时间是在()。
A. 2天左右
B. 2周末左右
C. 4周左右
D. 2月左右
She()her nervousness to the importance of the interview.
A. contributed
B. dedicated
C. distributed
D. attributed
Others argue that since the earth has endured a long string of ice ages in the last two million to three million years, any warming is()to be temporary.
A. seemed
B. likely
C. tended
D. possible
沸石类矿物对锶、铯吸附以()为主。
A. 物理吸附
B. 化学吸附
C. 物理和化学吸附
D. 离子吸附