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【单选题】
It still puzzles today's scientists _____ some mammals produce their young _____ others lay eggs to producetheir offspring (后代). [ ]
A.
that; while
B.
what; while
C.
that; as
D.
what; as
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题目标签：后代
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Vernon Bowman, a 75-year-old farmer from rural Indiana, did something that got him sued. He planted soybeans (大豆）sold as cattle feed. But Monsanto, the agricultural giant, insists it has a patent on t...
A.
Hollywood movies usually have an unexpected, dramatic impact on real-life arguments.
B.
The Supreme Court will try to change its reputation for supporting large corporations.
C.
The Supreme Court is likely to persuade the parties concerned to work out a settlement.
D.
The ruling would be in Bowman’s favor if the case were argued in a Hollywood movie.
【单选题】The United States (56) a large part of the North American continent. Its neighbors are Canada (57) the north, (58) Mexico to the south. (59) the United States is a big country, it’s not the larges...
A.
or
B.
and
C.
either
D.
nor
【单选题】How a Terrible Battle helped to Change Europe Ninety years ago on a sunny morning in Northern France, something happened that changed Britain and Europe forever. At half past seven on the morning of ...
A.
why
B.
which
C.
where
D.
what
【多选题】找到后代选择器，是后代选择器的是：（）
A.
ul li b{color：blue；}
B.
h1 span{color：red；}
C.
div em{color：red；}
D.
a，b{color：red；}