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【判断题】
F因子是决定 E.coli 性别并有转移能力的质粒。( )A.
正确
B.
错误
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【单选题】听力原文：The national forestry industry has seen a large increase in the demand for lumber over the last 12 months. According to forestry statistics, revenues increased by 21 percent to $1.2 billion. The ...
A.
The shortage of workers in the industry.
B.
The elimination of forestry regulations.
C.
The increase in home construction.
D.
The addition of new technologies.
【简答题】Section B – TWO questions ONLY to be attempted Thebe Telecom is a large national telephone business in Fayland. Thebe provides telephone service to more than 11 million customers through its fixed lin...
【简答题】National parks are large of areas of public land . They give a safe home for local plants and animal . They help keep the air and water clean . They also give us the best trips . Today ,there are near...
【单选题】It is good that we have large national parks, _____ wildlife enjoys proper protection. [ ]
A.
whose
B.
which
C.
where
D.
what
【单选题】In the National Zoo we can find______ animals that range from large beasts to Small birds.
A.
a species of
B.
a group of
C.
a variety of
D.
an amount of
【单选题】The national park has a large collection of wildlife, _________ from butterflies to elephants.
A.
ranging
B.
range
C.
to range
D.
ranged
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