在一般电子点火系中,发电机式信号转子感应线圈输出的是()
A.直流电压
B.交流电压
C.整形后的直流电压
D.整形后的交流电压
参考答案:B
Smith was overweight, so the doctor urged that not only _______ have less fat and meat,but also he _______.
A.should he; take exercise
B.must he; takes exercises
C.he can; does some exercises
D.he ought to; do some practice
以人为本的( )是人类对现代化实践在认识上不断深化的结果,代表了当今世界关于发展问题认识的新高度。
A.主导发展观
B.远景发展观
C.根本发展观
D.综合发展观