The new dress fits me well, _______ I li

在雷雨云下沿竖直方向的电场强度为5×10³V/m。已知一半径为1mm的雨滴在此电场中不会下落，取重力加速度大小为10m/s²，水的密度为10³kg/m³。这雨滴携带的电荷量的最小值约为[ ]

A．2×10^-9 C

B．4×10^-9 C

C．6×10^-9 C

D．8×10^-9 C

非指导性教学法

女性，50岁。乏力，活动后气促2年，近1月来出现腹部胀大伴下肢浮肿入院。以往有乙型肝炎，体检：巩膜黄染，心界向两侧扩大，心尖搏动及第一心音减弱，心尖区有Ⅲ级收缩期杂音，两肺底少量湿性啰音。腹水明显，肝脾无法扪清，下肢浮肿。血压120／70mmHg，，肝功测定结果：TB20μmol／L，CB8μmol／L，ALT40U。心电图V～V呈rS

出现以上情况，可以应用的药物是（）

A.阿托品

B.肾上腺素

C.利多卡因

D.胺碘酮

E.异丙基肾上腺素

F.阿替洛尔

Visual Basic 6.0不能使用下面哪一种数据访问技术______

A．ADO

B．DAO

C．ADO.NET

D．ODBC

VRML is a（1）for 3D multimedia and shared virtual worlds on the WWW. In comparison to HTML, VRML adds the next level of interaction, structured graphics, and extra（2）（z and time） to the presentation of documents. The applications of VRML are（3）,ranging from simple business graphics to entertaining WWW page graphics, manufacturing, scientific, entertainment, and educational applications, and 3D shared virtual worlds and communities. X3D is the name under which the development of VRML is continued. X3D is based on XML and is backwards（4）with VRML. Furthermore, it is componentized, profiled, and extensible, which makes it possible to use X3D in very different（5），from high-end visualizations to lightweight applications.

空白（1）处应选择（）

A.link

B.format

C.structure

D.procedure