项目结构图中矩形框的表达含义是( )中的组成部分。A．一个逻辑 B．一个流程 C．

已知等腰三角形的两条边长分别是4cm和2cm，则它的周长是     .

下列哪种标本最适合做尿胆原检验（）

A.随机尿

B.餐后2小时尿

C.晨尿

D.12小时尿

E.24小时尿

China is to send its top negotiator on North Korea’s nuclear program to Pyongyang (36) amid international concern over the launch of (37) .
While the (38) and its ally Japan push for (39) against North Korea, China is (40) , not sanctions.
Also, the (41) to Japan says sanctions on North Korea will (42) efforts to bring the secluded state back to (43) on its nuclear program.
North Korea (44) the six-party talks in (45) after Washington imposed financial sanctions for alleged counterfeiting and (46) activities.
A broadcast on North Korean State Television (47) the missile tests, in what it called a "successful (48) ".
It said North Korea will take action against anyone who (49) them.
The Minister is reported to have told a (50) that the missile launches were (51) because of America’s sanctions against Pyongyang.
North Korea remains (52) in the face of international condemnation and has warned (53) could be carried out.
UN Security Council members will (54) discussions tonight on whether a (55) condemning the missile launches should call for sanctions.

下列关于联合试运转费的说法错误的是（）。

A.联合试运转费是试运转支出大于收入的差额部分费用

B.联合试运转费不包括应由设备安装工程费用开支的调试及试车费用

C.联合试运转费不包括在试运转中暴露出来的因施工原因或设备缺陷等发生的处理费用

D.联合试运转费不包括施工单位参加联合式运转人员的工资

电梯轿厢内应设置摄像机，电梯轿厢内摄像机的安装位置一般是（）

A、安装在轿厢门左侧上角

B、安装在轿厢门右侧上角

C、安装在轿厢顶部中间

D、安装在轿厢门内侧的左或右上角