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【单选题】
使用“洞口”工具可以在直线墙或曲线墙上剪切洞口,以下说法正确的是:A.
对于墙，可创建圆形洞口
B.
对于墙，可创建多边形洞口
C.
对于墙，只能创建矩形洞口
D.
A、B的说法是正确
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反馈参考答案：
举一反三
【单选题】公式 ∆ H=Q p 适用于下列过程中的( )
A.
理想气体从 1013.25kPa反抗恒定外压101.325kPa膨胀
B.
273K，101.325kPa下冰融化成水
C.
298K，101.325kPa下电解CuSO 4 水溶液
D.
气体从状态 I 等温可逆变化到状态 II
【简答题】American schoolkids attend school for fewer days than children in other educationally advanced countries , a situation President Obama said Monday needs to change. "I think we should have a longer sch...
【单选题】President Obama said, “Steve was among the greatest of American ( )”
A.
investigations
B.
dictators
C.
elevators
D.
innovators
【简答题】Passage A American schoolkids attend school for fewer days than children in other educationally advanced countries, a situation President Obama said Monday needs to change. I think we should have a lo...
【单选题】President Obama said there is no ____________ that all the steps agreed to at the meeting will work, but he thought they applied the right medicine.
A.
participation
B.
appreciation
C.
guarantee
D.
procedure
【单选题】The US president Obama said his country will sign a peace treaty with the DPRK (朝鲜) _____ the latter gets rid of all its nuclear facilities. [ ]
A.
while
B.
even if
C.
so that
D.
provided
【单选题】President Obama said the U.S.government must be able to act _______ when information surfaces about a potential threat.
A.
decisively
B.
spiritually
C.
exclusively
D.
capriciously
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