皮皮学,免费搜题
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【简答题】
填空。 All hope was not lost. Soon after the quakes, the army sent 150'000 1 to Tangshan to help the rescue workers. Hundreds of thousands of people were 2 . The army organized teams to dig out those who were trapped and to bury the 3 . To the north of the city, most of the 10'000 miners were 4 from the coal mines there. Workers built shelters for survivors whose homes had been destroyed. 5 water was taken to the city by train, truck and plane. Slowly, the city began to breathe again. (     )1. A. students (     )2. A. driven (     )3. A. dead (     )4. A. wounded (     )5. A. Hot B. soldiers B. treated B. living B. tired B. Cool C. workers C. helped C. young C. left C. dirty D. people D. divided D. old D. rescued D. Fresh
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举一反三
【判断题】地钱的孢子体没有 蒴齿
A.
正确
B.
错误
【多选题】地钱的孢子体没有( )
A.
蒴帽
B.
孢蒴
C.
蒴柄
D.
蒴齿
【单选题】造成沿程损失的原因,就是
A.
流体有粘性
B.
流体有摩擦
C.
流体流动较慢
D.
流体流动较快
【判断题】花径育种较其它育种目标难实现。(    )
A.
正确
B.
错误
【多选题】地钱的孢子体没有( )
A.
蒴帽
B.
孢蒴
C.
蒴柄
D.
基足
E.
蒴齿
【判断题】造成沿程损失的原因,就是流体有粘性。
A.
正确
B.
错误
【简答题】育种目标(名词解释)
【单选题】信息在短时记忆的存留时间一般是:
A.
0.25-2秒
B.
2-5秒
C.
1分钟以内
D.
1分钟上
【单选题】古人有“折柳送别”的说法,是因为柳树有()的寓意。
A.
相思的感情
B.
可以代表故乡
C.
“留”的谐音字
D.
A和C
【单选题】关于育种目标,不正确的叙述是( )。
A.
育种目标是对所要育成品种的要求
B.
产量性状是育种目标中最重要的性状
C.
具体的育种目标应因地因时而有所不同
D.
育种目标应具体可行