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【简答题】
CO 2 是一种重要的资源．它在一定条件下可转化为具有多种用途的CO或甲醇． （1）该转化属于 （填“物理”或“化学”）变化． （2）在能源领域，氢是一种 （填“化石能源”或“清洁能源”）；为减少温室气体排放，可开发和利用的新能源还有 （写一种）． （3）甲醇（CH 3 OH）可用作赛车燃料．若其燃烧产物与乙醇燃烧产物相同，则其燃烧的化学方程式为 ． （4）为了缓解大气中的CO 2 含量增加，以下建议不可行的是 （填字母）． A．开发新型能源 B．禁止使用矿物燃料 C．大量植树造林，禁止乱砍滥伐．
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举一反三
【单选题】____________the trousers? They’re very nice. They feel soft and smooth.
A.
What do you think of
B.
What do you like
C.
How do you do
D.
How would you like
【单选题】腮腺导管口开口于
A.
上颌第三磨牙牙冠的颊黏膜
B.
上颌第二磨牙牙冠的颊黏膜
C.
上颌第一麽牙牙冠的颊黏膜
D.
上颌第二前磨牙牙冠的颊黏膜
E.
上颌第一前磨牙牙冠的颊黏膜
【单选题】Why are three categories on the table missing numbers from last year?
A.
Nobody invested in those areas last year.
B.
People lost all their money in those investments.
C.
Real estate was not divided into two categories last year.
D.
The survey did not ask about real estate investments.
【单选题】The author’s attitude toward the view that living things are divided into three categories is best described as one of______
A.
tentative acceptance
B.
mild skepticism
C.
limited denial
D.
studious oriticism
E.
whole hearted endorsement
【简答题】fall into three categories
【单选题】What do you the pollution around us? [ ]
A.
feel of
B.
think of
C.
feel about
D.
think
【单选题】腮腺导管口开口于
A.
上颌第三磨牙牙冠的颊黏膜
B.
上颌第二磨牙牙冠的颊黏膜
C.
上颌第一磨牙牙冠的颊黏膜
D.
上颌第二前磨牙牙冠的颊黏膜
E.
上颌第一前磨牙牙冠的颊黏膜
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