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【单选题】
在形成生殖细胞过程中,非同源染色体可以自由组合,有均等的机会组合到一个生物细胞中,这是( )的细胞学基础。
A.
互换率
B.
分离率
C.
连锁定律
D.
自由组合率
E.
互换率
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参考答案：
举一反三
【单选题】（ ） has become the market trend of the century.
A.
E-commerce
B.
E-mail
C.
E-government
D.
E-journal
查看完整题目与答案
【单选题】高度变化 不同高度的对象,创造了垂直的蜿蜒效果,为空间增加了趣味。通过使用台阶、花坛、天篷、杆子、树木和喷泉,可以得到不同的高度。 请选择更合适的设计。
A.
设计一
B.
设计二
查看完整题目与答案
【单选题】易流态化货物的流动水分点是用__表示
A.
含水体积的百分比
B.
含水重量的百分比
C.
温度
D.
粒度
查看完整题目与答案
【单选题】Passage 1 — The Cost of Art 17.
A.
His art will be more expensive to buy.
B.
The price of his art will stay the same.
C.
His art will be less expensive to buy.
D.
His art will go on sale.
查看完整题目与答案
【单选题】The ______ in E-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billion in North America.
A.
illness
B.
virus
C.
weakness
D.
attachment
查看完整题目与答案
【单选题】If the master has acted unreasonably， e．g． knowing of the danger in the port has still proceeded to enter it， and danger results， the Charterer will ________ ．
A.
be liable
B.
not be liable
C.
be paid
D.
not be paid
查看完整题目与答案
【简答题】The ______ in e-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billion in North America. A．illness B．virus C．weakness D．Attachment A． B． C． D...
查看完整题目与答案
【判断题】The e mperor has nothing on. ( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】The ______ in e-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billion in North America.
A.
illness
B.
virus
C.
weakness
D.
attachment
查看完整题目与答案
【单选题】在采用定流量泵的液压系统中设置压力调节活门 (卸荷活门)的目的是
A.
防止系统压力超过规定的最大值
B.
将系统压力保持在设定的工作压力范围内
C.
将系统压力始终保持在规定的最大值
D.
将系统压力始终限定在规定的最小值
查看完整题目与答案
相关题目：
【单选题】（ ） has become the market trend of the century.
A.
E-commerce
B.
E-mail
C.
E-government
D.
E-journal
查看完整题目与答案
【单选题】高度变化 不同高度的对象,创造了垂直的蜿蜒效果,为空间增加了趣味。通过使用台阶、花坛、天篷、杆子、树木和喷泉,可以得到不同的高度。 请选择更合适的设计。
A.
设计一
B.
设计二
查看完整题目与答案
【单选题】易流态化货物的流动水分点是用__表示
A.
含水体积的百分比
B.
含水重量的百分比
C.
温度
D.
粒度
查看完整题目与答案
【单选题】Passage 1 — The Cost of Art 17.
A.
His art will be more expensive to buy.
B.
The price of his art will stay the same.
C.
His art will be less expensive to buy.
D.
His art will go on sale.
查看完整题目与答案
【单选题】The ______ in E-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billion in North America.
A.
illness
B.
virus
C.
weakness
D.
attachment
查看完整题目与答案
【单选题】If the master has acted unreasonably， e．g． knowing of the danger in the port has still proceeded to enter it， and danger results， the Charterer will ________ ．
A.
be liable
B.
not be liable
C.
be paid
D.
not be paid
查看完整题目与答案
【简答题】The ______ in e-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billion in North America. A．illness B．virus C．weakness D．Attachment A． B． C． D...
查看完整题目与答案
【判断题】The e mperor has nothing on. ( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】The ______ in e-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billion in North America.
A.
illness
B.
virus
C.
weakness
D.
attachment
查看完整题目与答案
【单选题】在采用定流量泵的液压系统中设置压力调节活门 (卸荷活门)的目的是
A.
防止系统压力超过规定的最大值
B.
将系统压力保持在设定的工作压力范围内
C.
将系统压力始终保持在规定的最大值
D.
将系统压力始终限定在规定的最小值
查看完整题目与答案
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