世界上唯一掌握百万吨煤直接液化关键技术的国家是（）。 A.美国 B.德国 C.日本

工程建设项目环境影响评价文件不包括（）。

A．环境影响报告书

B．环境影响登记表

C．环境影响报告表

D．环境影响管理报表

患者女，20岁，因“阵发性心悸、头痛、胸闷半年”来诊。查体：P80次/min，BP130/80mmHg；身高168cm，体重48kg，指、趾细长；右上唇和舌尖分别见0.7cm、0.8cm肿物；甲状腺左叶可触及一个1.0cm×1.5cm肿物，表面光滑，质硬，可随吞咽上下活动；左颈部可触及一个肿大淋巴结，质中，无压痛，活动度差；心、肺、腹部未见异常。

下一步处理是（）。

A.α-和β-肾上腺素受体阻滞剂

B.首先进行右侧肾上腺肿瘤切除术

C.甲状腺全切术及中央区域淋巴结清扫

D.其他家系成员基因筛查

E.甲状腺激素替代

F.肾上腺皮质激素替代

At a basic level， cloud computing is simply a means of delivering IT resources as （）.Almost all IT resources can be delivered as a cloud service: applications， compute power， storage capacity， networking，programming tools，even communication services and collaboration （）。

Cloud computing began as large-scale Internet service providers such as Google，Amazon，and others built out their infrastructure. An architecture emerged: massively scaled， （） distributed system resources，abstracted as virtual IT services and managed as continuously configured， pooled resources. In this architecture， the data is mostly resident on （）“somewhere on the Intemet”and the application runs on both the "cloud servers”and the user’s browser.

Both clouds and grids are built to scale horizontally very efficiently. Both are built to withstand failures of （） elements or nodes. Both are charged on a per-use basis. But while grids typically process batch jobs， with a defined start and end point， cloud services can be continuous. What’s more， clouds expand the types ofresources available —— file storage， databases， and Web services —— and extend the applicability to Web and enterprise applications.

Almost all IT resources can be delivered as a cloud service: applications， compute power， storage capacity， networking，programming tools，even communication services and collaboration （）。

A．computers

B．disks

C．machine

D．tools

左肾结石1.2cm，肾积水轻度，尿检有红细胞，应采取哪种治疗方法

A．肾盂切开取石
B．肾镜取石
C．药物排石治疗
D．肾盂肾窦切开取石
E．体外震波碎石

①B落到地面时的速度?

②B落地后,A在桌面上能继续滑行多远才能静止下来?（g取10m/s2）