1. [单选题]壳斗科(Fagaceae)均为木本，单叶互生，羽状脉。( )
A. 正确
B. 错误
2. [单选题]图启示我国发展经济必须 （ ）
A. 坚持对外开放的基本国策
B. 完善市场调节机制(market regulating mechanism)
C. 保障外资经济的优先发展
D. 保持人民币持续升值
3. [单选题]—It’s no use having ideas only.—Don’t worry. Peter can show you to turn an idea into an act.
A. how
B. who
C. what
D. where
4. [单选题]
A. brave
B. hard
C. smart
D. unfair
5. [单选题]People tend to make mistake when ____.
A. they perform. several challenging tasks at a time.
B. new messages are processed one after another
C. their relationships with others are affected
D. the tasks require little thought
