拟投入国际道路运输经营的运输车辆，技术等级应达到（）级。
参考答案：一
I don't think____possible to learn English well without ____memory work.[ ]
A. it; many
B. that; a large number of
C. one; a great deal of
D. it; a good deal of
“诸寒之而热者取之阴”与“诸热之而寒者取之阳”怎样理解？
