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【单选题】
函数 在点 处偏导数 存在是 在该点全微分存在的( )
A.
既非充分又非必要条件
B.
充要条件
C.
充分条件
D.
必要条件
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参考答案：
举一反三
【单选题】What did the woman's parents do in Central America?
A.
Travel around the area.
B.
Volunteer their services.
C.
Teach in some schools.
D.
Visit relatives in the area.
查看完整题目与答案
【单选题】斜盘式汽车空调压缩机的润滑,主要是依靠( )润滑方式进行的。
A.
飞溅
B.
压力
C.
制冷剂中带有润滑油进行自然循环润滑
D.
重力
查看完整题目与答案
【单选题】遗失物自发布招领公告之日起( )内无人认领,归国家所有。
A.
2 个月
B.
3个月
C.
6个月
D.
12个月
查看完整题目与答案
【单选题】What did the author's mother suggest as the right way for the Chinese to respond at the dinner table in America?
A.
They should say indirectly whether they want to have anything or not, rather than directly refuse or accept it.
B.
They should say directly whether they want to have anything or not, rather than refuse for the sake of politeness even if they in fact want to eat it.
C.
They should take whatever they want to eat, and beat around the bush to ask the host to prepare more dishes so that they can pack up and take away.
查看完整题目与答案
【单选题】斜盘空调压缩机的润滑,主要靠( )润滑方式进行的。
A.
飞溅
B.
压力
C.
制冷剂中带有润滑油进行自然循环润滑
D.
重力
查看完整题目与答案
【单选题】斜盘式汽车空调压缩机的润滑,主要是依靠( )润滑方式进行的。
A.
(A)飞溅
B.
(B)压力
C.
(C)制冷剂中带有润滑系进行自然循环润滑
D.
(D)重力
查看完整题目与答案
【单选题】What did the womans parents do in Central America?
A.
To travel around the area.
B.
To volunteer their services.
C.
To teach in some schools.
D.
To visit relatives in the area.
查看完整题目与答案
【简答题】某企业 2*18 年 3 月 1 日有关资金内容及金额如下 : (1) 存放在企业的现款 1000 元。 (2) 存放在银行的款项 300 000 。 (3) 库存的各种材料 19 000 元。 (4) 房屋 900000 元。 (5) 机器设备 800 000 元。 (6) 投资者投人资本 1755 000 元。 (7) 购货方拖欠货款 80 000 元。 (8) 从银行借人的半年期借款 120...
查看完整题目与答案
【单选题】He noticed that the straight part of the dance was different in the afternoon from _______ it had been in the morning. （2006年宜昌市模拟题）
A.
that
B.
where
C.
what
D.
which
查看完整题目与答案
【单选题】遗失物自发布招领公告之日起( )内无人认领的,归国家所有。
A.
30日
B.
1个月
C.
3个月
D.
6个月
查看完整题目与答案
相关题目：
【单选题】What did the woman's parents do in Central America?
A.
Travel around the area.
B.
Volunteer their services.
C.
Teach in some schools.
D.
Visit relatives in the area.
查看完整题目与答案
【单选题】斜盘式汽车空调压缩机的润滑,主要是依靠( )润滑方式进行的。
A.
飞溅
B.
压力
C.
制冷剂中带有润滑油进行自然循环润滑
D.
重力
查看完整题目与答案
【单选题】遗失物自发布招领公告之日起( )内无人认领,归国家所有。
A.
2 个月
B.
3个月
C.
6个月
D.
12个月
查看完整题目与答案
【单选题】What did the author's mother suggest as the right way for the Chinese to respond at the dinner table in America?
A.
They should say indirectly whether they want to have anything or not, rather than directly refuse or accept it.
B.
They should say directly whether they want to have anything or not, rather than refuse for the sake of politeness even if they in fact want to eat it.
C.
They should take whatever they want to eat, and beat around the bush to ask the host to prepare more dishes so that they can pack up and take away.
查看完整题目与答案
【单选题】斜盘空调压缩机的润滑,主要靠( )润滑方式进行的。
A.
飞溅
B.
压力
C.
制冷剂中带有润滑油进行自然循环润滑
D.
重力
查看完整题目与答案
【单选题】斜盘式汽车空调压缩机的润滑,主要是依靠( )润滑方式进行的。
A.
(A)飞溅
B.
(B)压力
C.
(C)制冷剂中带有润滑系进行自然循环润滑
D.
(D)重力
查看完整题目与答案
【单选题】What did the womans parents do in Central America?
A.
To travel around the area.
B.
To volunteer their services.
C.
To teach in some schools.
D.
To visit relatives in the area.
查看完整题目与答案
【简答题】某企业 2*18 年 3 月 1 日有关资金内容及金额如下 : (1) 存放在企业的现款 1000 元。 (2) 存放在银行的款项 300 000 。 (3) 库存的各种材料 19 000 元。 (4) 房屋 900000 元。 (5) 机器设备 800 000 元。 (6) 投资者投人资本 1755 000 元。 (7) 购货方拖欠货款 80 000 元。 (8) 从银行借人的半年期借款 120...
查看完整题目与答案
【单选题】He noticed that the straight part of the dance was different in the afternoon from _______ it had been in the morning. （2006年宜昌市模拟题）
A.
that
B.
where
C.
what
D.
which
查看完整题目与答案
【单选题】遗失物自发布招领公告之日起( )内无人认领的,归国家所有。
A.
30日
B.
1个月
C.
3个月
D.
6个月
查看完整题目与答案
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