背1遍就想上考场大学英语考研单词 420
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    [00:01]affect

    [00:02]Studies of both animals and humans have shown

    [00:06]that sex hormones somehow affect the stress response,

    [00:12]causing females under stress to produce more of the trigger

    [00:17]chemicals than do males under the same conditions.

    [00:24]defect

    [00:25]But this is a man whose company has sold more than

    [00:28]20 million cars in the U.S. in the last decade, some of

    [00:32]which now have a serious defect that has led to the deaths

    [00:36]of at least 34 people.

    [00:41]infect

    [00:43]Researchers discovered that plants infected with a virus

    [00:48]give off a gas that activates disease resistance in neighboring

    [00:55]plants.

    [00:57]flock

    [01:00]In the United States, multitudes of premiums for new

    [01:04]devices were awarded at country fairs and at the industrial

    [01:10]fairs in major cities. Americans flocked to these fairs to

    [01:17]admire the new machines and thus to renew their faith in

    [01:22]the beneficence of technological advance.

    [01:28]flour

    [01:30]Everything here has a purpose, she says. Take the

    [01:34]patches of winter wheat. When the farmers come in

    [01:38]with their machines, they cut off the top and sell it to

    [01:43]companies that make products like flour, then use the

    [01:47]bottom for hay.

    [01:53]heal

    [01:54]Billy Bragg and I undoubtedly have very different

    [01:58]views of the world’s problems — and I am certain that

    [02:03]many of our prescriptions to heal those problems would

    [02:08]differ even more.

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