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就目前的制备技术制成的多晶硅太阳能电池的光电转换效率要比单晶硅太阳能电池的光电转换效率 。
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【单选题】Sally is a student of Grade Eight． She always works hard (11 ) her lessons． English is her favorite (12 )． She thinks that it is as (13 ) as Chinese， but it's more difficult (14 ) than Chinese． For ex...
A.
in
B.
at
C.
for
D.
of
【多选题】虚箭线的作用有()
A.
连接和断开工作之间的关系
B.
区分两项同时开始同时结束的工作
C.
正确表达相关工作的逻辑关系
D.
表达一项需消耗资源的工作
E.
表达一项需消耗时间的工作
【简答题】Nowadays most people decide quite early what kind of work they would do. When I was at school, we had to choose ( 11 ) when we were fif. I chose scientific subjects. 'In the future , scientists wi...
【简答题】根据所给的主题句及提示,写好段落的扩展句。 主题句:He was kind and shy before a group of naughty girls, but he was very strict in his teaching and with our students. 1 teach us—a lot in knowledge—as well as in morality 2 I re...
【多选题】虚箭线的作用有( )。
A.
正确表达相关工作之间的逻辑关系
B.
切断不相关工作之间的联系
C.
表示一项工作
D.
连接分层、分段的工作
E.
分开同时开始且同时结束的几个工作
【多选题】虚箭线的作用有______。
A.
在不同工程项目之间工作有联系时应用
B.
两项或两项以上的工作同时开始和同时结束时，必须引入虚箭线
C.
用于解决工作关系的逻辑断路问题
D.
用于解决工作间逻辑关系的连接
【单选题】Question 17-20 are based on the following passage. Fill in the blanks with the best transitional expression. I’ve had a lot of trouble with my car leaking oil lately. First, there’s a pool of oil two ...
A.
Before
B.
However
C.
In the meantime
D.
After
【简答题】Many children love animals and Willow Phelps is one of 1.t_______. In fact, this little American girl not only loves animals, but also has done really a lot for them. And 2.b _______ she did these kin...
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