8. TDTH属于（）A. CTL B. Th1 C. Th2 D.

What can you learn from the video clip about the Native...

单项选择题 What can you learn from the video clip about the Native Americans in the 19th Century? A.
They are civilized people. B.
They are respected by the citizens in theUnited States. C.
They enjoy the same right as other citizens in theUnited States. D.
They are discriminated and not allowed to enter in most public places.

问答题

地球内能主要包括（） A、地球自转所产生的旋转能 B、地球内放射性元素蜕变产生的放射能 C、地球内部物质所产生...

多项选择题地球内能主要包括（）
A、地球自转所产生的旋转能
B、地球内放射性元素蜕变产生的放射能
C、地球内部物质所产生的重力能、对流能
D、地球内部物质的化学能、结晶能

8. TDTH属于（ ）A. CTL B. Th1 C. Th2 D. Th3 E. Tfh

8. TDTH属于（）A.
CTL B.
Th1 C.
Th2 D.
Th3 E.
Tfh