在中外法学著作中,法的渊源有如下不同的含义:()。
A.法的历史渊源
B.法的理论渊源
C.法的形式渊源
D.文件渊源和文献渊源
参考答案:A, B, C, D
在MPI(多点汽油喷射系统)中,汽油被喷入()。
A、燃烧室内
B、节气门后部
C、进气歧管
D、进气道
He had studied hard, he would have been able to pass the exam.
A. He had studied harder B. If only he studied moreC. Had he studied harder D. When he studied more