【单选题】Which of the following do computers and high-tech tools NOT do in training American athletes?
B.
Suggest ways to improve.
C.
Eliminate the competition
【判断题】产品或服务的可行性是评价创业计划书的基本标准()
【单选题】The term 'track record' in line 5 most probably means ______.
【单选题】心动周期中,心室血液充盈主要是因为( )。
【单选题】运行中的绝缘油的闪点应不比前次测量值低( )。
【单选题】Which of the following statements about red effect in sports is TRUE?
A.
It words for athletic contest only.
B.
It varies from different weight classes.
C.
It exists in team sports.
D.
It is not so obvious in other sports as in soccer.