电力系统的频率静态特性取决于()的频率静态特性和()的频率静态特性。
参考答案:负荷;发电机
—If he ___________, he ________that food.
—Luckily he was sent to the hospital immediately.
A.was warned; would not take
B.had been warned; would not have taken
C.would be warned; had not taken
D.would have been warned; had not taken
义务教育阶段数学课程的总目标,从()、()、解决问题和情感与态度等四个方面作出了阐述。