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【简答题】
A nuclear power station is planning an open day for the local community. Complete the comments from the meeting with the comparative forms of the adjectives in brackets or as... as. Tours of the site We should have smaller groups than last time. Free gifts The cotton bags are (1) (good) the plastic ones, but they are not as cheap. The hats weren't (2) (popular) the T-shirts last time. Refreshments Sandwiches are (3) (convenient) hot food.They are quicker to serve and it's (4) (easy) to keep food cold than to keep it hot. Soft drinks are (5) (appropriate) alcohol for a family event. Entertainment for children Acrobats are (6) (entertaining) clowns. They appeal to a (7) (wide) age range. Inflatable castles are (8) (expensive) organised games, but they aren't (9) (difficult) to monitor.
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举一反三
【单选题】7 William of Orange started Constitutional Monarchy by accepting ——-in 1689.
A.
Bill of Rights
B.
Petition of Right
C.
Provisions of Oxford
D.
Great Charter
【判断题】PN结内建电场的方向是P指向N。
A.
正确
B.
错误
【多选题】我国的《药品生产质量管理规范》(2010年版)把空气洁净度分为哪几个等级
A.
A级
B.
B级
C.
C级
D.
D级
E.
E级
【判断题】pn结内建电场方向是由n区指向p区。
A.
正确
B.
错误
【简答题】p-n结内建电场的方向是从____型半导体指向______型半导体。
【多选题】我国《药品生产质量管理规范》中把空气洁净度分为哪几个等级
A.
100级
B.
1000级
C.
1万级
D.
10万级
E.
大于10万级
【单选题】专门为某种用途而设计的计算机,称为计算机.
A.
通用
B.
专用
C.
特殊
D.
模拟
【单选题】某光源发光效率达200 lm/W,是电光源中光效最高的一种光源,寿命也最长,具有不眩目特点,是太阳能路灯照明系统的最佳光源。这种电光源是( )。
A.
高压钠灯
B.
卤钨灯
C.
金属卤化物灯
D.
低压钠灯
【判断题】P-N结内建电场的方向为p区指向n区
A.
正确
B.
错误
【判断题】pn结内建电场方向从p区指向n区
A.
正确
B.
错误
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