[判断题] 电流矢量超前于电压矢量90°称为容性? 功,如电容器、电缆输配电线路等。
A.正确
B.错误

[简答题]简述固定修复体的固位原理及临床应用：摩擦力。

[判断题]‡年10月23日10:19分,某水泥制造企业制造工段工艺主管姚某安排操作员程某负责联系叉车叉吊切砖机到双排座上。因故程某便打算利用机修仓库行吊吊装，行吊刚一起吊,切砖机侧翻倒向程某,压到程某右脚脚面,经诊断为右脚第二路骨基底部骨折。该起事故属于坍塌事故。
A.正确
B.错误

[判断题]配电工作票的有效期，以批准的停电时间为限。
A.正确
B.错误

[单项选择]应进行交叉配血试验的情形是（）
A. 冰冻白细胞
B. 输注成分血
C. 浓缩红细胞
D. 白细胞悬液
E. 洗涤白细胞

[单选题]上横担进行工作前，应检查横担联结是否牢固和腐蚀情况，检查时安全带应系在（）或牢固的构件上。
A.上方横担
B.下方横担
C.主杆
D.角钢
E.lue

[多选题]水带附件由哪些组成()(易)
A.水带包布
B.水带挂钩
C.水带护桥D水带捆扎器

[单项选择]水果蛋糕配方正常，但切片时容易碎裂，其原因为（）
A. 烘焙时炉温太低
B. 炉温太高
C. 面糊搅拌不足
D. 面糊搅拌不匀

[多选题]对钢包内衬进行检查，发现（ ）或（ ）必须下线检查确认。
A.大片掉料
B.局部发黑
C.包壁侵蚀
D.渣线侵蚀

[单项选择]In the field of marketing, consumer goods are
classed according to the way in which they are
(19) The two main categories are convenience goods and shopping goods. Two lesser types are specialty and unsought goods. It must be (20) that all of these types are based on the way shoppers think about products, not on the (21) of the products themselves. What is regarded as a convenience (22) in France (wine, for example) may be a specialty in the United States.
People do not (23) a great deal of time shopping for such convenience items as groceries, newspapers,toothpaste, and candy. The buying of convenience goods may be done (24) , as some families buy groceries once a week. Sometimes convenience products are bought on (25) : someone has a sudden desire for a sundae on a hot day. Or they may be purchased as emergency items.
Shopping goods are items for which customers search.They (2
A. produced
B. provided
C. purchased
D. promoted