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【简答题】
“半匹红纱一丈绫,系向牛头直”。说明纺织在古代文化中充当过____的角色。
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皮皮学刷刷变学霸
举一反三
【单选题】改变毛细管长度,可以改变( )。
A.
蒸发压力
B.
无变化
C.
冷凝温度
D.
制冷剂流量
【单选题】在相同线电压作用下 , 同一台三相交流电动机作三角形联结所产生的功率与作星形联结所产生功率之比是
A.
B.
1/3
C.
D.
3/1
【单选题】London is steeped in Dickensian history. Every place he visited, every person he met, would be drawn into his imagination and reappear in a novel. There really are such places as Hanging Sword Alley i...
A.
Because Dickens once lived there.
B.
Because Dickens died there.
C.
Because it is owned by Dickens's descendants.
D.
Because it was Dickens's first London home.
【简答题】A.He drinks milk every night. B.He gets enough sleep every day. C.He does a lot of exercise. D.He gets the genes of his father.
【单选题】铣刀头装配图中, 220 属于( )尺寸
A.
规格性能
B.
外形
C.
安装
D.
装配
【单选题】在相同线电压作用下,同一台三相交流电动机作三角形联结所产生的功率与作星形联结所产生功率之比是
A.
/1
B.
1/3
C.
D.
3/1
【单选题】He ________ every nerve for a supreme blow.
A.
lurked
B.
vexed
C.
fretted
D.
slurred
【简答题】看图写话。 1. my, sister, now     2. Beijing,  it             3. he, every day    4. Kate, want 1.______________________________________________________ 2.__________________________________________________...
【单选题】在相同线电压作用下,同一台三相交流电动机作三角形联结所产生的功率与作星形联结所产生功率之比是
A.
/1
B.
1/3
C.
1/
D.
3/1
【判断题】为什么奶茶妹妹选择刘强东?
A.
正确
B.
错误
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