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搜题
【单选题】
我国铁路客车实行( ),日常维修由所属车辆段的客整所和客列检负责A.
区段维修负责制
B.
固定配属制
C.
不实行配属制
D.
车辆工厂负责制
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反馈参考答案：
举一反三
【多选题】下面选项中, 属于DBCP数据源核心类的选项是()
A.
BasicDataSourceFactory
B.
BasicDataSource
C.
DataSource
D.
DataSourceFactory
【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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