【单选题】The salary range indicates that ______.
A.
everyone can earn a beginning salary of $50,000 or more
B.
some applicants would earn less than $50,000
C.
candidates with M.A. would earn more than $80,000
D.
the salary depends on the amount of education and experience the applicant has
【单选题】The grass seeds which were sown in Spring are beginning to _____. [ ]
【单选题】Captain Alison will ________ at eight o’clock, so we shall have plenty of time. [ ]
【单选题】【试题】采购资金的性质是确定采购行为是否属于政府采购制度规范范围的重要依据。根据政府采购的上述定义,政府采购资金为( )资金。
【单选题】When does the conversation take place?
A.
In the middle of the semester.
B.
At the beginning of exams.
C.
At the end of the school year.
D.
In the middle of summer vacation.
【简答题】A、B、C、D、E代表单质或化合物,它们之间的相互转换关系如下图所示。A为地壳含量仅次于氧的非金属元素的单质,其晶体结构与金刚石相似。 请填空: (1)形成单质A的原子的结构示意图为 ,它的最高化合价为 。 (2)B的化学式(分子式)为 。B和碳反应生成A和E的化学方程式是 。 (3)C的化学式(分子式)为 ,D晶体中化学键类型有 。 (4)设计实验比较碳和A的非金属性强弱(用离子方程式表示) 。
【判断题】At the beginning o f the video a receptionist is looking at her timetable.
【简答题】在Windows系统中,在任意对象上单击鼠标右键,可以打开该对象的_____菜单.
【简答题】(16分) 有两种位于短周期的相邻周期、相邻主族的非金属元素X、Y.已知两元素最高价氧化物的水化物均为强酸.根据下图转化关系(反应条件及部分产物已略去),回答下列问题: (1)若A、B、C、D均为含X元素的化合物,且A的一个分子中只含有10个电子,则: ①A的分子构型为 。 ②反应Ⅰ的化学方程式为 。 ③化合物NaX 3 是合成“达菲”的中间活性物质,NaX 3 受撞击后生成Na 3 X和另一种气...