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【单选题】
x 为状态函数,下列表述中不正确的是A.
d x 为全微分
B.
当状态确定， x 的值确定
C.
∆ x = ∫d x 的积分与路经无关，只与始终态有关
D.
当体系状态变化， x 值一定变化
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举一反三
【单选题】--- How can we apply the card? ---________
A.
Ask customers to fill in the card after service or on the website.
B.
Tell them they have to attend it on time.
C.
The card is very important to improve the services of our company.
【单选题】How did Master Card, became for a while the biggest card in the country?
A.
It joined with 77 other banks.
B.
It won a large group of customers over Everything Card.
C.
It began forming alliances with banks outside the state.
D.
It learned the secret of its success from California headquarters.
【简答题】"How credid card companies make money" calls for __________ process.
【简答题】How many local places accept the card?
【单选题】中国石油加油卡门户网站的网址是()
A.
www.petrochina.card.com.cn
B.
www.card.petrochina.com
C.
www.card.petrochina.com.cn
D.
www.petrochina.card.com
【简答题】How long is the card valid? For _____________ years.
【简答题】什么是载冷剂，最常用的载冷剂是什么？
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