在板材平焊过程中,如焊件已烧穿,应()。
A、迅速压低火焰
B、减慢焊速
C、减小焊嘴倾角
D、加快焊速
参考答案:C
下面说法不正确的是()
A.皮下血肿一般体积较小
B.帽状腱膜下血肿体积较大,可致贫血或休克
C.骨膜下血肿一般局限于某一颅骨范围内
D.较小的头皮血肿一般1~2周可自行吸收
E.骨膜下血肿易被误诊为凹陷性骨折
根据句意及首字母或汉语提示完成单词。
1. China is a l _____ country with a long history.
2. What s _____ shoes would you like?
3. We often have rice,meat, _____ (马铃薯) for lunch every day.
4. What _____ (饮料) would you have?
5. We have many great _____ (特色菜) in the restaurant.