长度尺寸(角度)等级为D,形位公差等级为H、焊缝质量级别Ⅳ适用于允许偏差()的结构件。
A、大
B、小
C、不变
D、任意
参考答案:A
用 must, oughtn't to, don't have to, mustn't, needn't或 have to填空。
1. You _____ go on working because you look so tired now.
2. The weather turned out to be fine yesterday. I ______ have had the trouble to carry my umbrella
with me.
3. If you earn more than ~5,000, you _____ pay tax.
4. You ______ play now ! You shall finish your homework first!
5. You can't give up. You ______ try to get over the difficulties.
男性,61岁。3天前睡觉醒后发现视野范围缩小,神志清楚,血压正常,心脏正常,右侧同向性偏盲,言语正常,肢体肌力正常,感觉正常。
A.脑栓塞
B.脑血栓形成
C.脑出血
D.脑膜炎
E.蛛网膜下腔出血