若点A（0°，100°E）和点B（20°N，110°E）位于昏线上，此日，出现极昼的最低纬度上正午太阳高度为40°。据此回答第下面问题。
此日，长沙（28°N）的正午太阳高度为（ ）
| A．22° | B．42° |
| C．62° | D．82° |
此时，有一架飞机从A点正东且相差10度经度的某点出发向东飞行，经历12小时回到出发点，则飞行员在飞行过程中观测到的日出日落次数描述正确的是( )
| A．一次日出和一次日落 | B．两次日出和两次日落 |
| C．一次日出和两次日落 | D．一次日落和两次日出 |
Some famous singers live on the _________ from their record sales.
| A．salary | B．value | C．bill | D．income |
The World Trade Organization (WTO) finally opened its door to China on November 10, ______ our Chinese 15-year wait.
| A．to end | B．ended |
| C．ending | D．ends |
Qingdao is _______ most beautiful coastal city and I think I’ll go there for _______ second time.
| A．a;a | B．the; a | C．the; the | D．the; a |
A beach house caught fire last night, ______seven students living in it.
| A．to kill | B．killing | C．having killed | D．killed |
____the sketch of Xiao Shenyang made a _____has been known to us all.
| A．That; hit | B．What; strike | C．Why; beat | D．which; knock |