大排量泵车主阀块上共有（）个小液动阀。
A、1个
B、2个
C、3个
参考答案：C
Sally is afraid of her teacher, ________ he is very strict.
[ ]
A. so
B. because
C. and
D. but
如何理解《金刚经》中“无有定法，如来可说”？
