钎焊是利用______母材熔点的钎料进行焊接的方法。
A.低于
B.高于
C.等于
参考答案:A
根据句意和所给汉语提示,完成下列句子。
1. Li Qiang used to _____ (迟到) school.
2. Light music helps you _____ (放松自己).
3. It's not good to drink tea just before _____ (上床睡觉).
4. If I had much money, I'd _____ (把它存入银行).
5. You needn't _____ (担心) what others say about you.
()为钳蝎科动物东亚钳蝎的干燥体。