In(74), the only element that can be deleted or removed is the one that was inserted most recently.

● In （74） the only element that can be deleted or removed is the one that was inserted most recently.（74）

假设参加计算机等级考试的学生关系R，参加英语等级考试的学生关系S。求既参加了计算机考试又参加了英语考试的学生，应当进行下列（）。

Shanghai is the most largest city by population in the People's Republic of China.

Off hire is when a vessel breaks down，strands，or has any damage that prevents the working of cargo or delays the sailing of the vessel．Under which of the following charter parties is off hire most likely to be mentioned?（）.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

The （） is used for hauling in or letting out the wires or ropes.

What is the most important when it comes to a good job: money, colleagues, boss or the working environment?

某中学老师想要考察该校学生英语考试成绩的离散程度，先随机抽取了41位考生，并求出它们成绩的标准差S=12。设全校学生英语成绩服从正态分布。试根据上述资料，对全校学生英语考试成绩的离散程度即总体方差进行置信度为95%的区间估计。

某学生在某次期中考试中，估计自己的英语考试成绩为80分，但其实际成绩为85分。于是，他将期末考试中英语考试的理想成绩定为90分。根据阿尔德弗尔的ERG理论，这反映了该学生的（ ）。

某学生在某次期中考试中，估计自己的英语考试成绩为80分，但其实际成绩为85分。于是，他将期末考试中英语考试的理想成绩定为90分。根据阿尔德弗尔的ERG理论，这反映了该学生的(　　)。