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【单选题】
下列各组多项式中没有公因式的是(  )
A.
3x-2与6x 2 -4x
B.
3(a-b) 2 与11(b-a) 3
C.
mx-m与ny-nx
D.
ab-ac与ab-bc
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参考答案:
举一反三
【单选题】Section A Directions: In this section you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. The conversation and the question will be spo...
A.
5:00.
B.
5:30.
C.
6:00.
D.
6:30.
【单选题】诊断白血病最重要的依据是
A.
心电图
B.
贫血程度
C.
骨髓象
D.
出血症状
E.
胸骨疼痛
【单选题】设a,b为两条直线,α,β为两个平面,下列四个命题中,正确的命题是 [     ]
A.
若a,b与α所成的角相等,则α∥b
B.
若a∥α,b∥β,α∥β,则a∥b
C.
若a α,b β,α∥b,则α∥β
D.
若a⊥α,b⊥β,α⊥β,是a⊥b
【单选题】Most banks have a section()you set up payees.
A.
that
B.
which
C.
in which
【单选题】Section A Directions: In this section you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. The conversation and the question will be spo...
A.
Clean the kitchen.
B.
Clean the bathroom.
C.
Watch a video program.
D.
Wash the dishes.
【单选题】Section A Directions: In this section you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. The conversation and the question will be spo...
A.
At 6:40.
B.
At 6:48.
C.
At 7:00.
D.
At 7:20.
【单选题】设α表示平面,a、b表示两条不同的直线,给定下列四个命题: ①若a ∥ α,a⊥b,则b⊥α; ②若a ∥ b,a⊥α,则b⊥α; ③若a⊥α,a⊥b,则b ∥ α; ④若a⊥α,b⊥α,则a ∥ b. 其中为假命题的是(  )
A.
②③
B.
①③
C.
②④
D.
①③④
【单选题】诊断白血病最重要的依据是
A.
心电图
B.
骨髓象
C.
贫血程度
D.
出血症状
E.
胸骨疼痛
【单选题】诊断白血病最重要的依据是
A.
心电图
B.
骨髓象
C.
贫血程度
D.
出血症状
E.
购骨疼痛
【单选题】患者,男性,35岁。因肱骨干骨折入院,伤后局部组织肿胀明显。手法复位后行石膏固定。术后护士应注意观察肢端血运。若有血运障碍,下面表现最不可能发生的是
A.
疼痛
B.
发绀
C.
肿胀
D.
皮温升高
E.
脉搏减弱或消失
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