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【单选题】把200ml =0.25的酒精配制成药用消毒酒精,需加 =0.95 的酒精的体积是( )
A.
200ml
B.
250ml
C.
400ml
D.
500ml
【单选题】听力原文: If there was a single act that would improve your health, cut your risk of food-borne illnesses, and help preserve the environment and the welfare of millions of animals, would you do it? The ac...
A.
Meatless hot dogs.
B.
Meat-free burgers.
C.
The plant-based cuisines of India, China, Mexico, Italy and Japan.
D.
Meals of animal protein.
【简答题】配制500ml消毒用酒精( φ B =0.75 ),需用药用酒精( φ B =0.95 )多少毫升?
【简答题】词汇运用 1. He ______(看) morning TV every day. 2. February is the ______(第二) month of the year. 3. When do you play ______(运动)? 4. I can see some ______(照片) on the wall. 5. I usually ______(乘) the number ...
【判断题】多倍体在植物中较常见,在动物中较少见。
A.
正确
B.
错误
【简答题】B The first step for the accomplishment of every act is the attitude of the person who wants to do something with his life. If you are the type of person who is always optimistic and has faith in your...
【单选题】听力原文:M: What inspired you to act? W: It must have been born in me. I've been doing it since I was 7 years old. Maybe it was my family. Who knows? I just know when I saw a stage for the first time, I w...
A.
She needs to work hard to advance her career.
B.
She happens to have a high profile job.
C.
She needs to spend much of her time away from her family.
D.
She has a quite extended family.
【简答题】配制500ml消毒用酒精____,需用药用酒精____多少毫升?
【多选题】Some simple keys to transform your life The power of choices. Every one of us makes countless choices every day. Every choice we make has an impact on our lives. 16.________When hunger strikes, we can...
A.
. How do you make choices?
B.
. Discuss them together to choose your project.
C.
. But how do I know what is really the best?
D.
. What is important is that we should pay attention to this presence.
E.
. So it is very important for you to take good care of yourself.
F.
. Even small or unimportant choices can affect what we experience and how we feel.
G.
. This then allows you to improve your decision, and make a right one.
【单选题】把200ml φ=0.25的酒精配制成药用消毒酒精,需要加φ=0.95的酒精的体积是( )
A.
200 ml
B.
250 ml
C.
400 ml
D.
500 ml
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