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【简答题】
Pottery is the name given to all kinds of useful or artistic objects made from clay. Pottery can be plates or water pots or baskets. Pottery can be large or small, fancy or plain. Pottery is part of the large family of ceramics(陶器).Ceramics are synthetic materials. For example, bricks and tiles (瓦片) are both ceramics. How is pottery made? First, a potter takes some clay. Clay is a soft, red material from the earth. It looks a little like red dirt, but it's very different. Clay is thick and rich. Wet clay can be worked into any shape. When the clay dries, it will keep that shape. The potters takes some clay and pushes and squeezes(挤压)it until it is soft and smooth. After that, the clay can be shaped into anything. There are several ways to shape clay. Sometimes potters use their hands. Sometimes they use a special wheel. They place the clay in the center of a round, flat wheel. The wheel moves very fast, and the potter shapes the clay. After the potter has shaped the clay, it can be decorated(装饰). Potters use glaze, which is a kind of paint, to decorate their work. Some glazes are very simple. Other glazes have beautiful colors and designs. The glaze is not just beautiful. It is also useful. The glaze makes the pottery smooth and waterproof. Potters also make some decorative lines and designs on the surface. After it is decorated, the clay must be baked, or fired, in a special oven. Baking the clay at very high temperature makes it hard and strong. Firing also makes the glaze stick to the pottery. When the firing is over, the potter carefully removes the pottery from the oven and lets it cool slowly. If it cools too quickly, it could crack and break. Since pottery is waterproof, it is very popular for dishes. You can find examples of pottery in almost any home. But pottery can also be found in museums. Some pieces of pottery are valuable and beautiful pieces of art. 小题1:It is possible that ceramics are materials of _______ . A.metal B.plastic C.wood D.earth 小题2:The word 'waterproof' means _______ . A.能盛水的 B.防水的 C.溶解于水的 D.吸水性强的 小题3:Which statement is NOT true according to the passage? A.Plates, water pots and bowls are all examples of pottery. B.Wet clay can be made into anything of different shapes by the hands or a special wheel. C.The clay becomes smooth and waterproof because of the glaze. D.After the firing in high temperature, pottery is easy to break.
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举一反三
【单选题】关于标准差,下列哪项说法是错误的
A.
反映全部观察值的离散程度
B.
度量了一组数据偏离均数的大小
C.
反映了均数代表性的好坏
D.
不会小于算术平均数
【单选题】关于标准差,下列哪项是错误的
A.
反映全部观察值的离散程度
B.
度量了一组数据偏离平均数的大小
C.
反映了均数代表性的好坏
D.
不会小于算术均数
E.
度量衡单位与均数一致
【判断题】旅游者到饭店用餐形成的服务合同属于合同的推定形式。 ( )
A.
正确
B.
错误
【多选题】在急救的过程中,为了避免交叉感染,施救者有哪些注意点?()
A.
避免直接接触伤病员的体液
B.
使用防护手套,并用防水胶布贴住自己损伤的皮肤
C.
急救前和急救后都要洗手
D.
进行口对口人工呼吸时,一般不会造成交叉感染,所以不需要使用人工呼吸面罩
【单选题】电渣压力焊当钢筋直径为 28mm 及以上时,四周焊包凸出钢筋表面的高度不得小于( )mm。
A.
3
B.
4
C.
5
D.
6
【单选题】下列()不属于合同中的推定形式。
A.
宾馆住宿的旅游者到宾馆专用停车场停车形成的保管合同
B.
旅游者到饭店用餐形成的服务合同
C.
旅游者参加旅游团队形成的旅游合同
D.
旅游者到商店购物形成的安全合同
【单选题】关于qEEG量化标准,下列哪项是错误的()
A.
急性脑损伤,病侧频带功率增高
B.
各频带功率超过正常值30%属异常
C.
同名脑区左右峰值相差0.5Hz以上,快的一侧有病理意义
D.
谱边界频率(SEF.可反映麻醉深度变化趋势
E.
δ相对功率增高(RDI)值>5个标准差,持续15分钟,可确定脑缺血发生
【单选题】关于样本标准差,下列哪项表述是错误的 ( )
A.
反映样本观察值的离散程度
B.
度量了数据偏离样本均值的大小
C.
反映了均值代表性的好坏
D.
不会小于样本均值
【多选题】下面对裁切工具描述正确的是?
A.
裁切工具可将所选区域裁掉,而保留裁切框以外的区域
B.
裁切后的图像大小改变了,分辨率也会随之改变
C.
裁切时可随意旋转裁切框
D.
要取消裁切操作可按 Esc 键
【判断题】旅游者到饭店用餐形成的服务属于合同的推定形式。
A.
正确
B.
错误
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