可用“离、合、出、入”来概括其循行特点的是（）
A．经别
B．别络
C．浮络
D．孙络
E．奇经
参考答案：A
He collected information on 1,000 people, whose IQ when they were ten years old.
A．is tested
B．has tested
C．would test
D．had been tested
