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【单选题】
点火提前角过大,容易造成( )。A.
爆燃
B.
最高压力降低
C.
油耗增加
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【简答题】请补充以下空白,听力可以重复3遍。 16、 What ceremony is the speaker addressing? The ______ ceremony of the International Arts Contest. 17、 What opportunity does the contest provide for young people? A good opportunity...
【简答题】Section D Directions: This section is to test your ability to comprehend short passages. You will hear a recorded passage. After that you will hear five questions. Both the passage and the questions w...
【判断题】膳食纤维能刺激肠道蠕动和分泌消化液,有助于食物的消化和废物的排泄,减少有害物质与肠粘膜接触时间,有预防便秘痔疮和直肠癌的作用,还能降低胆固醇,预防和治疗糖尿病。
A.
正确
B.
错误
【单选题】膳食纤维能防治肠道疾病,其原因是
A.
能刺激肠道的蠕动，加速粪便排出体外
B.
可吸收大量水分，增大粪便体积，降低肠道内有毒物质的浓度
C.
有利于肠道益生菌的生长
D.
其余均是
【简答题】Q16. What ceremony is the speaker addressing? The ____________ceremony of the International Arts Contest.
【简答题】What ceremony is the speaker addressing? The 16 ceremony of the International Arts Contest. What opportunity does the contest provide for young people? A good opportunity to 17 their creativity. How m...
【简答题】what ceremony is the speaker addressing? The ___________________ ceremony of the International Art Contest. 17. What opportunity does the contest provide for young people? A good opportunity to ______...
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