苏子降气汤的主治症状有A．痰涎壅盛 B．喘咳短气 C．呼少吸多 D．肢体浮肿

小明制作了洋葱鳞片叶表皮细胞、人的口腔上皮细胞临时装片，在显微镜下看到的情况如图，请据图回答：

（1）据图可知，他观察到的洋葱表皮细胞是______图．

（2）这两种细胞中都有的能量转换器是______．

（3）临时装片的制作主要在净片、滴液、取材、盖片、染色五步，A图中出现气泡，可能是哪个步骤操作不规范引起的？______．

（4）制作口腔上皮细胞临时装片时，第二步中往载玻片中央滴加的液体是______．

（5）为了更清楚地看到B图中细胞的结构，他应该转动C图显微镜中标号______所示结构，使______（填低倍或高倍）物镜对准通光孔．

（6）B图中显微镜下看不清的是细胞的哪部分结构？______．

男性，56岁，反复发作上腹部疼痛6年余，近日出现上腹胀痛，伴呕吐，呕吐物为隔餐食物，查体可见上腹部饱满，有震水音，最可能的诊断为（）

A.胃癌

B.慢性胃炎

C.胃下垂

D.消化性溃疡合并幽门梗阻

E.胃黏膜脱垂症

下面的条目中，______是 IBM 数据仓库三层结构中的组成部分。Ⅰ. OLTP 业务系统Ⅱ. 前台分析工具Ⅲ. 数据仓库 Ⅳ. 数据集市

A．Ⅰ、Ⅱ和Ⅲ

B．Ⅰ、Ⅱ和Ⅳ

C．Ⅰ、Ⅲ和Ⅳ

D．Ⅱ、Ⅲ和Ⅳ

As viewed from space, the Earth’’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million km (93 million miles), the Earth is the third planet from the Sun and the fifth largest planet in the solar system. Its rapid spin and molten nickel-iron core give rise to an extensive magnetic field which, coupled with the atmosphere, shields us from nearly all of the harmful radiation coming from the Sun and other stars. Most meteors burn up in the Earth’’s atmosphere before they can strike the surface. The planet’’s active geological processes have left no evidence of the ancient pelting it almost certainly received soon after it was formed. The Earth has a single natural satellite — the Moon.

This selection leads one to believe that the Earth________.

A．never gets hit by meteors

B．always gets hit by meteors

C．was hit by meteors some time in the past

D．may be bombarded by meteors in the near future

我国著作权法中，______指同一概念。

A．出版权与版权
B．著作权与版权
C．作者权与专有权
D．发行权与版权