利用教育心理学原理,教师不仅可以正确分析、了解学生,而且可以( ),并采取相应的( ),达到预期的效果.
What is the total amount that the two advertisements will cost for one week
A. $5
B. $15
C. $30
D. $250
Passage 1Questions 25 to 27 are based on the passage you have just heard.
An English reporter.
B. An American reporter.
C. An English scientist.
D. An American scientist.