电动势的方向规定为电源力推动（）运动方向A、负电荷 B、电子 C、正电荷 D、中子

直肠癌Dukes分期，不正确的是（）。

A.D期：癌肿伴远处器官转移

B.B期：癌肿未超出浆肌层，伴淋巴结转移

C.C₂期：癌肿侵犯肠壁全层，伴肠系膜动脉根部淋巴结转移

D.C₁期：癌肿侵犯肠壁全层，伴肠旁系膜淋巴结转移

E.A期：癌肿未超出浆肌层，并且无淋巴结转移

肠痈初期最典型的症状是（）

A.腹痛

B.腹泻

C.发热

D.便秘

E.呕吐

A）根据括号中所给的汉语写出单词，使句子意思完整正确。

小题1:Our English teacher gave us many   ▲ (建议) on the study of a foreign language.

小题2:As we all know, a year is   ▲  (划分) into 12 different star signs.

小题3:Is that Miss Lee? She is much   ▲ (苗条) than before.

小题4:Robert enjoys   ▲ (收集) stamps and now he has 300 of them.

小题5:The Canadian singer Justin Bieber became famous   ▲  (立即)after his song “Baby”.

Documentation of a software package is normally produced for two purposes.One is to explain the(1)of the software and describe how to use them.This is known as (2)because it is designed to be read by the user of the software.The other purpose of documentation is to describe the software's intemal composition so that thesystem can be maintained later in its life cycle.Documentation of this type is known as(3)

空白（1）为（）

A.plans

B.cost

C.features

D.schedules

男性，31岁。发现左侧阴囊软性肿块2年，平时无不适，卧位不消失。结婚4年未育。查体：左侧阴囊明显松弛下垂，似蚯蚓团块状物清晰可见，触之柔软，透光试验（-）。检查精液常规提示弱精症。

最可能的诊断是（）

A.睾丸鞘膜积液

B.交通性鞘膜积液

C.腹股沟斜疝

D.精索鞘膜积液

E.左侧精索静脉曲张