Decide whether the following statements are true (A) or false (B).At the entrance to the town, the tour guide tells the tourists the meeting time.
查看答案
The Old Town of Lijiang is rather a modern town.
A. 对
B. 错
The Old Town is located in northwestern Yunnan Province.
A. 对
B. 错
The Old town is a World Cultural Heritage Site.
A. 对
B. 错
晶体管工作在放大区时,其特点是()。
A. 发射结正偏,集电结反偏
B. 发射结反偏,集电结正偏
C. 发射结正偏,集电结正偏
D. 发射结反偏,集电结反偏