皮皮学,免费搜题
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搜题
【单选题】
离心式制冷压缩机()旋转改变角度而改变进入叶轮的气流流动方向和气体容积流量,调节制冷量。
A.
叶轮
B.
导流叶片
C.
扩压室
D.
吸气室
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【单选题】— Did Jim ride his bike to school this morning? — He _____ come to school by bike. He hasn't found his bike yet. [     ]
A.
may
B.
mustn't
C.
can
D.
can't
【多选题】关于产权比率,下列说法正确的有()
A.
它是衡量偿债能力的指标
B.
产权比率不宜过高,也不宜过低
C.
一般应小于1
D.
与资产负债率具有共同的经济意义
E.
一般应大于1
【单选题】下列计算机存储器中,读写速度最快的是
A.
内存
B.
硬盘
C.
光盘
D.
软盘
【单选题】下列关于产权比率的说法不正确的是( )。
A.
该指标反映企业基本财务结构是否稳定
B.
产权比率高,是高风险、高报酬的财务结构
C.
产权比率越高,表明企业的长期偿债能力越强
D.
该指标表明债权人投入的资本受到股东权益保障的程度
【单选题】下列计算机存储器中,读写速度最快的是()。
A.
硬盘
B.
内存
C.
光盘
D.
U盘
【简答题】Soon after he transferred to the new school , Ali found that he had (很难跟上班里的同学)in math and English.
【单选题】下列计算机存储器中,读写速度最快的是( )。
A.
内存
B.
硬盘
C.
光盘
D.
U 盘
【单选题】________ arouses his interest can be found in the school library and that is why he goes there ________ happens.
A.
No matter what; whatever
B.
Whatever; no matter what
C.
Anything; no matter what
D.
Anything; whatever
【单选题】The lazy boy got up very late and went to school in a hurry. When he arrived at school, he found
A.
50. The lazy boy got up very late and went to school in a hurry.  When he arrived at school, he found that he had put his socks on _______. A.outside
B.
inside out
C.
side out
D.
back out
【单选题】A student in our school will be immediately sent home if he is found __________ computer games at night.
A.
play
B.
playing
C.
to play
D.
played
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