【单选题】【消耗次数：1】
13. Tom failed in the exam again ______ he wanted to pass it very much.
①
if
②
so
③
though
④
as
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相关题目
【单选题】
The subject was so ____ that Tom became very ____ in it.
①
interesting, interesting
②
interested, interested
③
interested, interesting
④
interesting, interested
【单选题】
After several years of hard work, he ______ pass the entrance exam.
①
could
②
can
③
is able to
④
was able to
【单选题】
13. Unfortunately, when I dropped in, Doctor Li _____ for Beijing to join in the fight again SARS, so we only had time for a few words.
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justleft
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hasjustleft
③
isjustleaving
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wasjustleaving
【单选题】
13. The supervisor appreciates ______ so hard in the office.
①
for your working
②
your working
③
you to work
④
for you to work
【单选题】
He irritates me so much that I could ( ).
①
screaming
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screamingly
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scream
【单选题】
13. When I was a teenager, my bedroom was always ____; as an adult, though, my room is always neat..
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tidy
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orderly
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mess
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【单选题】
13. He _____ a doctor when his mother was ill.
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随机题目
【单选题】
常用防龋材料，表述错误的是
①
含氟泡沫用于增强牙齿抗酸能力，促进再矿化，预防易感儿童、老人以及放射治疗病人的龋病
②
含氟漱口液适用于中或高发龋地区，除在学校中作为公共卫生项目和家庭使用外，还可用于龋好发患者、固定正畸患者，以及不能口腔自我健康护理的残疾患者
③
含氟涂料适用于低氟区和适氟区3~6岁儿童，固定正畸患者
④
用含氟漱口液和含氟涂料的龋齿增加量略高于用含氟凝胶和含氟牙膏
⑤
用含氟涂料的龋齿增加量低于用含氟漱口液，但两者防龋效果无显著性差异
【单选题】
使用含氟牙膏防龋，正确的是
①
氟牙膏的防龋功效与含氟浓度的高低无关
②
在饮水含氟量高的地区，7岁以下儿童推荐使用含氟牙膏
③
儿童使用含氟牙膏不会引起氟牙症
④
老年人不宜使用含氟牙膏
⑤
6岁以下的儿童宜使用含氟浓度低的牙膏