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问题 单项选择题 共用题干题

女性，55岁。外阴瘙痒伴灼热感4年，发现右侧大阴唇肿块1年，肿块活检为基底细胞癌伴鳞状细胞癌。

基底细胞癌的治疗原则一般是（）

A.外阴广泛切除

B.单纯外阴切除

C.较广泛的局部病灶切除

D.放射治疗

E.放射治疗配合化疗

答案

参考答案：C

问答题 简答题

有一变化量为0~16V的模拟信号，采用4位A/D转换器转换成数字量，输入到微机控制系统中，试求其量化单位q＝？，量化误差最大值emax＝？
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单项选择题

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.

How will they go to the Mystery Caves from the center of the town
[A] By ship.
[B] ay train.
[C] ay bus.
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