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【单选题】
如果两个同频率正弦交流电的 >0°,这种情况为( )。
A.
两个正弦交流电同相
B.
第一正弦交流电超前第二个
C.
两个正弦交流电反相
D.
第二个正弦交流电超前第一个
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【单选题】The only way I know to develop my soul is through feelings. Witnessing natural phenomena – the star-lit galaxy, a centuries-old redwood, the symphony of birds' songs in spring – stretches it, making m...
A.
The only way I know to develop my soul is through feelings.
B.
Witnessing natural phenomena – the star-lit galaxy, a centuries-old redwood, the symphony of birds' songs in spring – stretches it, making me feel humble and majestic, all at the same time.
C.
Human relationships bruise, collide and comfort, teaching me maturity and passion.
D.
Love urges my soul to blossom and glow, affection elicits feelings of eternity, and so I learn to accept others as they are.
【单选题】Read the following paragraphs from Text B and identify the topic sentence of each paragraph. The only way I know to develop my soul is through feelings. Witnessing natural phenomena – the star-lit gal...
A.
The 1st sentence
B.
The 2nd sentence
C.
The 3rd sentence
D.
The 4th sentence
【简答题】选词填空,完成短文。 went     with     last      did     got     long     left It was a ____________ holiday. We ____________ Changchun on May 1st and ____________ to Shenzhen on May 2nd. On the first day, I we...
【单选题】Our summer holiday is coming. Two ______ the students in our school will go to the beach. [     ]
A.
hundred
B.
hundreds
C.
hundred of
D.
hundreds of
【单选题】Our summer holiday is ____________ July. [     ]
A.
in
B.
on
C.
at
【单选题】Which sentence is the topic sentence of the following paragraph from Text B? The only way I know to develop my soul is through feelings. Witnessing natural phenomena-the star-lit galaxy, a centuries-o...
A.
The only way I know to develop my soul is through feelings.
B.
Witnessing natural phenomena-the star-lit galaxy, a centuries-old redwood, the symphony of birds’ songs in spring-stretches it, making me feel humble and majestic, all at the same time.
C.
Human relationships bruise, collide and comfort, teaching me maturity and passion.
D.
Love urges my soul to blossom and glow, affection elicits feelings of eternity, and so I learn to accept others as they are.
【单选题】(2周2次课)51单片机P口中,只能做地址线的是(        )口。
A.
P0
B.
P1
C.
P2
D.
P3
【单选题】日 军在全面侵华战争中被迫停止对中国正面战场的战略性进攻是在
A.
占领北平、天津以后
B.
占领太原、济南以后
C.
占领上海、南京以后
D.
占领广州、武汉以后
【单选题】Our summer holiday is coming. Two ______ the students in our school will go to the beach. [     ]
A.
hundred
B.
Hundreds
C.
hundred of
D.
hundreds of
【单选题】下列 input 组件绑定事件属性中,在输入框失去焦点时触发的是( )。
A.
bindinput
B.
bindfocus
C.
bindblur
D.
bindconfirm
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