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【单选题】
下列关于白细胞主要功能的叙述,正确的是( )
A.
对人体起防御、保护作用
B.
运输养料和氧气
C.
运输氧气和一部分二氧化碳
D.
促进止血和加速血液凝固的作用
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举一反三
【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...
【简答题】一密封体系中发生反应:N 2 +3H 2 2NH 3 ΔH<0, ①以下图1、图2均表示该反应在t 1 时达到平衡,在t 2 时改变某条件发生变化的曲线。 试判断,图1中t 2 时改变的条件是______________ ;图2中t 2 时改变的条件是____ _________。 ②下图是某一时间段中反应速率与反应进程的曲线关系图: 下列各时间段时,氨的百分含量最高的是 。 A.t 0 ~t 1...
【单选题】Our summer holiday is ____________ July. [     ]
A.
in
B.
on
C.
at
【简答题】(6分)在一定温度下的某容积可变的密闭容器中,建立下列化学平衡: C(s)+H 2 O(g) CO(g)+H 2 (g) 试分析和回答下列问题: (1)可认定上述可逆反应在一定条件下已达到化学平衡状态的是 (选填序号)。 A 体系 的压强不再发生变化 B  v 正 (CO)=v 逆 (H 2 O) C 生成n molCO的同时生成n mol H 2 D  1mol H-H键断裂的同时断裂2mol ...
【简答题】What does the author consider as the right means to develop the soul? (Para. 6) The only way I know to develop my soul is ________.
【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】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
【简答题】选词填空。 squirrels,  holiday,  noodles,  pictures,  mountain,  Wednesday Dear Kathy, The post card shows you a picture about my 1 . On Monday we went to the 2 , we saw many 3 there. On Tuesday we ate som...
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