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【单选题】
下列羰基化合物与 HCN 加平衡常数 K 值由大到小的顺序是:( ) 1CH 3 CHO 2CH 3 COCH 3 3ClCH 2 CHO 4C 6 H 5 COC 2 H 5
A.
③①②④
B.
①②③④
C.
④②①③
D.
①③②④
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参考答案:
举一反三
【单选题】You’re hosting a dinner party at a restaurant. Included are two other couples, and your most valuable client and his wife. You instruct the waiter to:
A.
serve you and your spouse last.
B.
serve your spouse first.
C.
serve your friend’s spouse first.
D.
serve your client last.
【简答题】适应智能差异的教学方法就是掌握学习。
【单选题】You’re hosting a dinner party at a restaurant. Included are two other couples, and your most valuable client and his wife. You instruct the waiter to:
A.
serve your spouse first.
B.
serve your friend’s spouse first.
C.
serve you and your spouse last.
D.
serve your client last.
【判断题】手推调车速度不得超过3km/h。
A.
正确
B.
错误
【单选题】正月には、日本人は正月独特の料理( )を食べたりして楽しむ。
A.
精進料理
B.
会席料理
C.
おせち料理
D.
本膳料理
【单选题】1997年某公司为响应国家鼓励开发未利用土地的政策,在土地利用总体规划规定的可开垦的区域内,开发一块国有荒地。该公司作为开发利用者,对该块荒地依法享有( )。
A.
土地产权
B.
土地使用权
C.
土地所有权
D.
土地处分权
【简答题】玻璃是用 、纯碱、长石、石灰等为主要原料,在1550~1600°C高温下熔融、成型、并经急冷而成的固体材料。
【简答题】适应智能差异的教学方法就是掌握学习。
【单选题】You’re hosting a dinner party at a restaurant. Included are two other couples, and your most valuable client and his wife. You instruct the waiter to:
A.
serve yourself first.
B.
serve your spouse first.
C.
serve your client’s spouse first.
D.
serve you and your spouse last.
【简答题】基准平面可用来(),作图平面则不能。
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