题目内容
A) associatedB) examineC) indicateD) nuisanceE) peakF) preventingG) prohibitingH) sensitiveI) slightJ) specifyK) superiorL) suspiciousM) tipN) treatedO) visualRats are often30with spreading disease rather than31it, but this long-tailed animal is highly32. Inside a rat’s nose are up to 1,000 different types of olfactory receptors （嗅觉感受器）, whereas humans only have 100 to 200 types. This gives rats the ability to detect33smells. As a result, some rats are being put to work to detect TB（肺结核）. When the rats detect the smell, they stop and rub their legs to34a sample is infected.
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A) associatedB) examineC) indicateD) nuisanceE) peakF) preventingG) prohibitingH) sensitiveI) slightJ) specifyK) superiorL) suspiciousM) tipN) treatedO) visualTraditionally, a hundred samples would take lab technicians more than two days to 35, but for a rat it takes less than 20 minutes. This rat detection method doesn’t rely on specialist equipment. It is also more accurate — the rats are able to find more TB infections and, therefore, save more lives.
种植一二年生花卉的注意事项是在其营养生长阶段必须有一段低温春化时间，否则，不会开花。
多年生花卉的生长发育规律是有生长阶段和休眠阶段，其休眠阶段又可分低温休眠和高温休眠。
原产热带的花卉有高温休眠现象，由于其高温休眠时并不落叶，因此，休眠时仍应保持大量的水肥供应。
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