我国的黑白山水画用的墨汁主要成分为炭黑的微粒，用这种墨汁画的国画千百年都不易褪色

流行性出血热的临床特征是（）

A.白细胞升高

B.腓肠肌痛明显

C.口腔内有科普利克斑

D.血液涂片是常用于确诊的方法

E.骨关节痛明显

把酒水开瓶后倒入公杯内，由客人自己取用。适用这种服务的酒水是( )

A．白酒

B．红酒

C．黄酒

D．青酒

颈深上淋巴结在头颈肿瘤的诊断和治疗中具有重要的意义，它可以是下面哪一肿瘤转移的第一站（）

A.头皮癌

B.舌癌

C.甲状腺癌

D.声门上型喉癌

E.颈段食管癌

男，50岁。2个月前，因急性前壁心肌梗死入院，经左前降支内药物支架植入后，住院7天出院。此后患者无任何症状，服用药物1个月后自行停用。2小时前在睡眠中再次发生剧烈胸痛。心电图为急性前壁再发心肌梗死。该患者本次再梗的最可能原因是（）

A.冠状动脉痉挛

B.支架内再狭窄形成

C.冠状动脉内斑块破裂

D.冠状动脉内新病变形成

E.支架内血栓形成

The trip to the Mystery Caves will take place on Sunday, 27 July. You can book your tickets in Room 188 between 2:30 p.m. and 4:00 p.m. every day. Your parents should confirm (确认) the booking by writing to us as soon as possible. You should pay for the trip before 21 July. If we do not receive your money early enough, your booking will be cancelled(取消). If the trip does not take place for any reason, your money will be paid back.
We are planning to meet outside the railway station on Black Street at 8:00 a.m. It will take us about 2 hours to get to the center of the town by train, and from there we have to catch a bus. It will take another hour to get to the Mystery Caves on the bus.
We will spend about 1 hour and a half visiting the caves (山洞), and we hope to catch the 1:30 bus to Happy Lake for some swimming. If we are late, we will have to take the 3:00 bus straight back to Black Street.

If you do not pay for the ticket early enough,
[A] the trip will be cancelled
[B] you can write to Room 188"and pay later
[C] you won’t be able to take the trip