CAHl01型化油器除一般怠速系统外还附加有热补偿装置,热怠速补偿装置的开启温度为()
A.50±2℃
B.62±2℃
C.58±2℃
D.65±2℃
参考答案:D
The little boy ate ________ his mother gave him.
A.that
B.which
C.whatever
D.no matter what
简述控制实验法的基本程序。