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【判断题】
多倍体是物种演化的一个重要因素，自然界中能自繁的多倍体几乎都是偶倍数的。A.
正确
B.
错误
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【单选题】The weather in Beijing is much colder than ______ in Shanghai. They're different. [ ]
A.
/
B.
it
C.
that
D.
this
【简答题】根据短文内容，用括号内动词的正确时态形式填空。 Liu Xiang was born in Shanghai on the 13th of July, 1983. He is 1.88m tall and 1______(weigh) 74 kilograms. He began practicing jumping when he was at Grade Four in primai7 sch...
【简答题】举例写出用特定的词汇来表示否定意义的方法。
【简答题】三 、 语法填空 Every Wednesday at 7 pm, a group of running enthusiasts from different countries gather at a bar in Shanghai before setting 61 on their 5-kilometer run. But this is no ordinary run. These peo...
【简答题】根据短文内容，用括号内动词的正确时态形式填空。 Liu Xiang was born in Shanghai on the 13th of July, 1983. He is 1.88m tall and 小题1: (weigh)74 kilograms. He began practicing jumping when he was at Grade Four in primai7 school...
【简答题】主轴锥孔轴线的径向跳动需在靠近主轴和( )两个位置测量。
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