当竖曲线半径短于3000m时，可在竖曲线范围内布置道岔的导曲线，但道岔的尖轨和辙叉应

建筑外墙(含金属、塑料)的安全和功能的检测项目有( )。

A．抗风压性能

B．隔音性能

C．雨水渗漏性能

D．空气渗透性能

E．保温性能

Online shopping is increasing popular among people in recent years．Some people liked to buy goods online．And I don’ t like it, because online shopping is less reliable than the traditional sale．Firstly, some dishonest merchant offer consumers to false information online．Secondly, consumers can’t feel the items that is usually presented by means of pictures．This means the items delivering may differ from which consumers expect．As a result, they may risk returning the items at our own expense．Thirdly, the items might be damaged during delivery．In word, online shopping isn’t reliable at all．

免疫组织化学染色间接法优于直接法的特点中，错误的是（）

A.不用标记第一抗体

B.第一抗体的工作稀释度较高

C.敏感性增强

D.特异性提高

E.应用范围更广

干咳无痰，咳声清脆多属于（）

A.风寒犯肺证

B.燥邪犯肺证

C.痰热壅肺证

D.风热犯肺证

E.湿邪犯肺

女性，70岁，双膝关节疼痛10年余，加重1年，行走较长距离后疼痛感加重。查体：双膝关节内翻，浮髌试验（-），双膝关节活动范围0°～10°～95°。X线片可见内侧关节间隙狭窄、周缘骨赘形成。

术后不会出现的并发症（）

A.下肢深静脉血栓

B.假体松动

C.肺栓塞

D.股骨干骨折

E.假体感染