面的正投影图是（） A.点 B.面 C.线 D.线或面 E.点或面

某监理公司承担了一幢办公楼施工阶段的监理任务，该工程由建设单位招标进场的某三建公司总承包，施工合同中已明确有600m²的塑钢窗安装任务，塑钢窗由甲方采购。建设单位在采购时，供货厂家表示可以负责安装，费用稍增，建设单位就与供货厂家签定了供货与安装合同。建设单位代表通知了施工总承包方和项目监理部，由供货厂家负责塑钢窗的安装。塑钢窗运达施工单位工地仓库进行了入库验收，在安装过程中，供货厂家按国家标准进行了安装，在窗框与墙体缝隙间进行了填嵌，并采用密封胶密封，报验后监理签署的验收结论为合格，接下来总承包单位进行了抹灰，贴面砖的施工。

工程竣工交付使用后的第一个雨季期间就发现有60%的塑钢窗与墙体间有严重的渗水，该质量事故发生后，建设单位找到监理单位要求对此事故进行分析和处理，经追查发现，安装时使用的密封胶是厂家从市场上采购的无证产品，质量不合格造成的。

1．业主在选择塑钢窗供货与安装单位时有何不妥？

2．监理在得知塑钢窗由供货单位安装后应做哪些工作？

3．试分析此质量事故各方的责任。

男性，50岁。近20天持续痰中带血。胸部听诊在左上肺可闻局限性哮鸣音，咳嗽后无改变。

首先要考虑的治疗措施是（）。

A.止血治疗

B.手术治疗

C.抗感染治疗

D.解痉治疗

E.解痉、抗感染治疗

根据新《企业会计准则》，以现金或非现金资产及债转股等方式偿还债务，其原债务的账面价值与实际支付公允价值之间的差额，计入（）。

A.资本公积

B.当期损益

C.资本利得

D.盈余公积

用盐酸滴定氢氧化钠溶液时，下列操作不影响测定结果的是（）

A、酸式滴定管洗净后直接注入盐酸；

B、锥形瓶用蒸馏水洗净后未经干燥；

C、锥形瓶洗净后再用碱液润洗；

D、滴定至终点时，滴定管尖嘴部位有气泡。

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.