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【单选题】
He remains confident and ______untroubled by our present problems.A.
indefinitely
B.
infinitely
C.
optimistically
D.
seemingly
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【多选题】对滚压成型描述正确的是( )。
A.
滚压成型是指利用现代滚压机滚头与滚筒相互旋转挤压泥料并使其沿石膏模具内壁至下而上运动的过程。
B.
滚压成型最大的优点在于能有效的控制泥坯的大小，提高效率，减少劳动强度与劳动时间，在龙泉青瓷批量生产中得到了广泛的运用。
C.
滚压成型工艺是现代制作龙泉青瓷使用较为普遍的工艺，它具有速度快、不易变形、容易掌握等优点。
D.
滚压成型是指把泥片放置在预先制作好的模具中，进行按压印制的过程。
【单选题】Not all food additives are bad and many of them are used to help preserve freshness, add flavor and protect foods from spoiling. But some people want to avoid food chemicals anyway.
A.
substances added to food
B.
substances that is fatty and oily
C.
substances found in natural and organic products
D.
substances making people unable to stop doing something
【简答题】A．Food Additives. B．Cancer-related labels. C．Food-related diseases. D．Bad Effects of Food on Health.
【单选题】People are increasingly concerned about food safety, and matters such as food-borne illnesses, environmental contaminations, natural toxicants in foods, pesticides, and food additives. Moving the food...
A.
food safety
B.
public agencies
C.
food-borne illnesses
D.
pesticides
【单选题】What is the main topic of the passage?
A.
Food and our health．
B.
Food and additives．
C.
Food and cancer．
D.
Food and culture．
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