What risks belong to the general additional risks? A: TPND B: War risks C: Leakage D: Rust

Many pure metals have little use because they are too soft, rust too easily, or have some other _______.

The general additional risks including（）are covered in all risks coverage. A: Arisk of shortage B: Brisk of leakage C: Cstrikes risk D: Drisk of rust

Which of the following processes would you classify as chemical reactions? A: The burning of paper B: The formation of rust on iron C: The boiling of water D: The preparation of sugar syrup by adding sugar to hot water E: The manufacture of salt by evaporation of sea water

Sentence Check 2 Complete the following sentences with the correct form of the words from the Word List by translating the Chinese into English.Word List：aspiration category champagne collective collision creative deficit denial deposit emigrate envious fairly forum guideline idiom lengthy liquor microwave pave precaution psychology reunite ridiculous rip rust sector solitary spray stimulate stride theft videophone volcano worthless yawn1. A trade (赤字)exceed its exports for a specific period of time, usually a year.2. Car （盗窃）is on the increase.3. In the financial （部门）, banks and insurance companies have both lost a lot of money.4. Painters are (有创造力的) artists.5. She （大踏步走） purposeful up to the desk and damaged to speak to the manager.

关于轻量级容器引擎iSulad，下列说法正确的有？ A: iSulad在设计之初就考虑到了云计算和IoT场景，为解决通信和信息技术领域的不同需求提供了统一架构设计。 B: iSulad采用木兰开源许可，目前已经是openEuler发行版（openEuler 20.03 LTS）的默认容器引擎。 C: 在openEuler 20.03 LTS中，iSulad的关键组件采用Rust语言开发，相比于docker和containerd等其他容器引擎，iSulad的内存开销更小，并发启动性能更高。 D: 在使用习惯上，iSulad兼容docker大部分命令，可以像docker一样管理容器和容器镜像。

Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, however, think the auto is here to stay. They hold that the car will remain a leading means of urban travel in the foreseeable future. The motorcar will undoubtedly change significantly over the next 30 years. It should become smaller, safer, and more economical, and should not be powered by the gasoline engine. The car of the future should be far more pollution-free than present types. Regardless of its power source, the auto in the future will still be the main problem in urban traffic congestion (拥挤). One proposed solution to this problem is the automated highway system. When the auto enters the highway system, a retractable (可伸缩的) arm will drop from the auto and make contact with a rail, which is similar to those powering subway trains electrically. Once attached to the rail, the car will become electrically powered from the system, and control of the vehicle will pass to a central computer. The computer will then monitor all of the car’s movements. The driver will use a telephone to dial instructions about his destination into the system. The computer will calculate the best route, and reserve space for the car all the way to the correct exit from the highway. The driver will then be free to relax and wait for the buzzer (蜂鸣器) that will warn him of his coming exit. It is estimated that an automated highway will be able to handle 10,000 vehicles per hour, compared with the 1,500 to 2,000 vehicles that can be carried by a present-day highway.One significant improvement in the future car will probably be ________. A: its power source B: its driving system C: its monitoring system D: its seating capacity