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【简答题】
某化学反应的速率常数的单位是 mol·dm -3 ·s -1 时,则该化学反应的级数是 。
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参考答案：
举一反三
【单选题】化妆品中含大量Bi、Al、Ca时，用原子吸收光谱法测定会干扰测铅的结果，这是因为
A.
它们影响铅的原子化
B.
它们的共振线接近铅的共振线
C.
它们原子化时，吸收大量能量，从而影响铅的测定
D.
它们的氧化物吸收铅的共振线
E.
它们改变了试样溶液的物理性质
查看完整题目与答案
【单选题】炒菜时,加酒又加醋,可使菜变得味香可口,原因是
A.
有盐类物质生成
B.
有酸类物质生成
C.
有醇类物质生成
D.
有酯类物质生成
查看完整题目与答案
【单选题】1mol任何物质所含的微粒数是( )个
A.
6.02×10 22
B.
6.02×10 23
C.
3.01×10 23
D.
6.02×10 24
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【单选题】免疫器官不包括 A、肝脏B、骨髓C、胸腺D、淋巴系统E、胃肠道粘膜
A.
B.
C.
D.
E.
E
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【判断题】发盘和接受一样都可以撤销
A.
正确
B.
错误
查看完整题目与答案
【单选题】炒菜时,又加酒又加醋,可使菜变得香味可口,原因是
A.
有盐类物质生成
B.
有酸类物质生成
C.
有醇类物质生成
D.
有酯类物质生成
查看完整题目与答案
【单选题】一侧内囊损伤时不可能出现下列哪项症状 ( )
A.
对侧半身感觉障碍
B.
对侧半身运动障碍
C.
双眼对侧视野偏盲
D.
同侧半身感觉障碍
查看完整题目与答案
【单选题】乳腺癌最早发现的症状是( )
A.
乳房痛
B.
乳房肿块
C.
酒窝征
D.
橘皮样皮肤
E.
乳腺囊性增生病
查看完整题目与答案
【多选题】一侧内囊损伤时,可出现:
A.
同侧半肢体瘫痪
B.
对侧半肢体瘫痪
C.
双眼对侧视野同向性偏盲
D.
对侧半身感觉障碍
查看完整题目与答案
【单选题】A car accident happened on the highway this morning. People took away the wounded to hospital immediately, and the government sent policemen there to cope with the event.
A.
A car accident was happened on the highway this morning. The wounded were immediately taken away to hospital, and the government were sent policemen there to cope with the event.
B.
A car accident was happened on the highway this morning. The wounded was immediately taken away to hospital by people, and policemen were sent there to cope with the event by the government.
C.
A car accident happened on the highway this morning. The wounded were immediately took away to hospital, and policemen were send there to cope with the event.
D.
A car accident happened on the highway this morning. The wounded were immediately taken away to hospital, and policemen were sent there to cope with the event.
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相关题目：
【单选题】化妆品中含大量Bi、Al、Ca时，用原子吸收光谱法测定会干扰测铅的结果，这是因为
A.
它们影响铅的原子化
B.
它们的共振线接近铅的共振线
C.
它们原子化时，吸收大量能量，从而影响铅的测定
D.
它们的氧化物吸收铅的共振线
E.
它们改变了试样溶液的物理性质
查看完整题目与答案
【单选题】炒菜时,加酒又加醋,可使菜变得味香可口,原因是
A.
有盐类物质生成
B.
有酸类物质生成
C.
有醇类物质生成
D.
有酯类物质生成
查看完整题目与答案
【单选题】1mol任何物质所含的微粒数是( )个
A.
6.02×10 22
B.
6.02×10 23
C.
3.01×10 23
D.
6.02×10 24
查看完整题目与答案
【单选题】免疫器官不包括 A、肝脏B、骨髓C、胸腺D、淋巴系统E、胃肠道粘膜
A.
B.
C.
D.
E.
E
查看完整题目与答案
【判断题】发盘和接受一样都可以撤销
A.
正确
B.
错误
查看完整题目与答案
【单选题】炒菜时,又加酒又加醋,可使菜变得香味可口,原因是
A.
有盐类物质生成
B.
有酸类物质生成
C.
有醇类物质生成
D.
有酯类物质生成
查看完整题目与答案
【单选题】一侧内囊损伤时不可能出现下列哪项症状 ( )
A.
对侧半身感觉障碍
B.
对侧半身运动障碍
C.
双眼对侧视野偏盲
D.
同侧半身感觉障碍
查看完整题目与答案
【单选题】乳腺癌最早发现的症状是( )
A.
乳房痛
B.
乳房肿块
C.
酒窝征
D.
橘皮样皮肤
E.
乳腺囊性增生病
查看完整题目与答案
【多选题】一侧内囊损伤时,可出现:
A.
同侧半肢体瘫痪
B.
对侧半肢体瘫痪
C.
双眼对侧视野同向性偏盲
D.
对侧半身感觉障碍
查看完整题目与答案
【单选题】A car accident happened on the highway this morning. People took away the wounded to hospital immediately, and the government sent policemen there to cope with the event.
A.
A car accident was happened on the highway this morning. The wounded were immediately taken away to hospital, and the government were sent policemen there to cope with the event.
B.
A car accident was happened on the highway this morning. The wounded was immediately taken away to hospital by people, and policemen were sent there to cope with the event by the government.
C.
A car accident happened on the highway this morning. The wounded were immediately took away to hospital, and policemen were send there to cope with the event.
D.
A car accident happened on the highway this morning. The wounded were immediately taken away to hospital, and policemen were sent there to cope with the event.
查看完整题目与答案
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