旧标准中，经过研磨的1号标准铰刀，所能达到的铰孔精度是（）。
A．H9
B．H10
C．N7、M7、K7、J7
参考答案：C
供应链融资产品要控制的“三流”是指（）
A．物流
B．资金流
C．信息流
D．数据流
根据首字母及句意补全单词
1. Her grandparents are very kind and l .
2. Ann set a r____ for the l00-meter race in the sports meeting last week.
3. She was b in a quiet country.
4. The kid was lost in the forest for two days. When we found him, he was still a_____.
5. When did she t the U.S.?
