某桥梁工程在施工前,项目经理部为保证安全,防止安全隐患的出现,在基坑开挖时采取了防

题型:多项选择题

问题:

某桥梁工程在施工前,项目经理部为保证安全,防止安全隐患的出现,在基坑开挖时采取了防坍塌措施,而且还准备采用网喷混凝土加固基坑壁。

无支护基坑的坑壁形式分为( )。

A.垂直坑壁

B.水平坑壁

C.斜坡坑壁

D.变形坑壁

E.阶梯形坑壁

考点:一级建造师市政公用工程市政公用工程管理与实务
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WTO规则是用来约束(’ )的。

A.企业

B.政府

C.个人

D.社会组织

题型:多项选择题

ZAO Learnfast is a publisher of study materials for professional students. It entered into contracts with Anna and Yevgeni under which they would produce study texts, with each text to be divided into 12 chapters of approximately equal length.Shortly after beginning to write her study text, Anna discovered that the work was too demanding. She wrote to ZAO Learnfast explaining this, enclosing drafts of the three chapters she had managed to complete, together with her invoice for one-quarter of the fee.Three months after entering into the contract with Yevgeni, ZAO Learnfast was advised by the relevant professional body that the subject on which Yevgeni was writing his study text would be withdrawn within a year. ZAO Learnfast wrote to Yevgeni explaining that his study text would no longer be required. By this time, Yevgeni had written three chapters of the study text. ZAO Learnfast is prepared to pay Yevgeni one-quarter of the fee specified in the contract.The contracts between ZAO Learnfast and the two writers made no provision for these events.Required:

(a) Discuss the consequences of Anna’s withdrawal from her contract with ZAO Learnfast. (5 marks)

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血管紧张素受体阻断剂与血管紧张素转换酶抑制剂相比,不引起()

A.咳嗽

B.高血钾

C.低血糖

D.低血压

E.皮疹

题型:多项选择题

下面哪一个是产品导入期的营销策略()

A.快速渗透策略

B.改进产品品质

C.扩大市场

D.放弃

题型:多项选择题

车辆停放管理收费应根据()物价部门核定的标准执行。

A、国家

B、省

C、当地

D、A或B

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