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【简答题】
____有前进感和膨胀感;
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皮皮学刷刷变学霸
举一反三
【单选题】The reason why he was late is ______ he got up too late.
A.
that
B.
because
C.
as
D.
for
【多选题】下面选项中， 属于DBCP数据源核心类的选项是（）(多选)
A.
BasicDataSourceFactory
B.
BasicDataSource
C.
DataSource
D.
DataSourceFactory
【简答题】He got up so late that he missed the school bus．（改为同义句） He got up________ late________ ________the school bus．
【单选题】Why was Tom late for class?
A.
He got up late.
B.
He went to bed late.
C.
He was iii.
【单选题】He got up very late, ______ he was late for school. [ ]
A.
and
B.
but
C.
because
D.
so
【单选题】单项选择。 He ______ up early every morning. But he ______ up late this morning. [ ]
A.
get, got
B.
gets, gets
C.
got, gets
D.
gets, got
【单选题】1-4. 如果BaCO 3 沉淀中尚有0.10 mol BaSO 4 , 在1.0 L 此沉淀的饱和溶液中加入多少 mol Na 2 CO 3 才能使0.010 mol BaSO 4 完全转化为BaCO 3 ? K sp θ (BaCO 3 ) = 2.6 x 10 -9 . K sp θ (BaSO 4 ) = 1.1 x 10 -10
A.
0.50 mol
B.
0.25 mol
C.
0.15 mol
D.
1.00 mol
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