"Unlike other mice, mice that are genetically incapable of making these particular cells do not show elevated levels of nitrates when infected with bacteria." this sentence means mice with these particular cells show elevated levels of nitrates when infected with bacteria.
And the question is "The statements above, if true, provide the most support for which of the following conclusions?". Please note the word "support" which means the statement above is the evidence for the answer.
"B. Mice that show elevated levels of nitrates can easily fight off most types of bacterial infections." You cannot find the evidence in the statement to support the idea that nitrates can "fight off" the bacterial. You actually suppose this idea without being aware of doing so.
C是对 Unlike other mice, mice that are genetically incapable of making these particular cells do not show elevated levels of nitrates when infected with bacteria的改写
黄色部分是一致的。
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有Macrophages 也有nitrates
没有Macrophages 没有nitrates
题目的要求就是从这里推出些什么。
举个例子:kalliy就明白了:水里放糖,有甜味;水里不放糖,没有甜味。问what can you infer from the argument above.------>只有在糖和甜味之间有联系。糖能升高或者降低甜味。
我有一个问题, 题设支持选项题和must be true(infer)题是不是一种类型的题呢? 题目问的是“the statements above provide the most support for which of the following conclusions" 直接翻译出来就是“这个statement能支持一下那个结论”