1.选择题- (共3题)
1.氦原子被电离一个核外电子后，形成类氢结构的氦离子。已知基态的氦离子能量为E1=－54.4 eV，氦离子能级的示意图如图所示。在具有下列能量的光子中，不能被基态氦离子吸收而发生跃迁的是 ( )
2.单项选择- (共10题)
4.
Professor Smith, along with his assistants, ________ on the project day and night to meet the deadline.
| A．work | B．working | C．are working | D．is working |
5.
Unfortunately, the element Madam Curie devoted all her life her death.
| A．to caused | B．causing | C．to be caused | D．to causing |
6.
It remains doubtful whether the project _____________ next month will bring profits to the company.
| A．accomplished | B．to be accomplished |
| C．having accomplished | D．being accomplished |
8.
______ has an interest in the lecture can go for a ticket from the office next to the gate of the lecture room.
| A．No matter who | B．Whoever | C．Anyone | D．Those who |
9.
We all know the truth ______ there are air, water and sunlight, there are living things.
| A．in wherever | B．where | C．that where | D．that |
10.
（题文）_______ I paid a visit to this scenic spot, I was deeply attracted by its beauty.
| A．Firstly | B．For the first time |
| C．The first time | D．At first |
11.
Recently, employees at the Shanghai Metro’s Railway Station Stop have been busy learning dialects from other parts of the country, ___________ aims to provide better service to travelers from outside the city.
| A．where | B．that | C．which | D．it |
试卷分析
-
【1】题量占比
选择题:(3道)
单项选择:(10道)
-
【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：0
5星难题：0
6星难题：10
7星难题：0
8星难题：0
9星难题：0