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【单选题】
宋代出现了世界上最早的纸币,称( )。
A.
半两
B.
五铢
C.
开元通宝
D.
交子
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举一反三
【单选题】—Good morning, Sally. —_______ [     ]
A.
Thanks.
B.
Good morning.
C.
Thank you.
【简答题】Say whether the following statements are ture or false. Sally goes to the chemist's to get her prescription filled. Chemist: Good morning. Sally:Good morning. Chemist: Can I help you? Sally: Oh yes. I...
【简答题】Sally Good morning. ____________?
【判断题】镜检发现染菌多为杆状,说明灭菌很彻底
A.
正确
B.
错误
【简答题】Complete the dialogue with the verbs below. ANNA Good morning. SALLY Good morning. I'm Sally Jones. I have a n appointment for a blood test. ANNY Oh yes, Ms Jones. Would you like to go straight into t...
【单选题】大小相等、方向相反、不共线的两个平行力是()。
A.
作用力与反作用力
B.
平衡力
C.
力偶
D.
力矩
【单选题】由 的两个力所组成的力系,称为力偶。I.大小相等;II.方向相同;III.方向相反;IV.作用线平行但不共线。
A.
Ⅰ+Ⅱ+Ⅲ+Ⅳ
B.
Ⅰ+Ⅱ+Ⅲ
C.
Ⅰ+Ⅲ+Ⅳ
D.
Ⅰ+Ⅱ+Ⅳ
【简答题】将十六进制转换成十进制,则0x23= ; 将十进制转换成十六进制;则23=0x 。
【简答题】Please watch the video clip above again, fill in the blanks with the missing words. Sally Good morning. How ___ ___ ___ ____?
【单选题】当下列反应的容器的体积变化时,平衡基本不受影响的是:
A.
N 2 (g)+3H 2 (g) ⇌ 2NH 3 (g)
B.
H 2 O 2 (l) ⇌ H 2 O (l)+1/2O 2 (g)
C.
H 2 (g)+I 2 (s) ⇌ 2HI(g)
D.
N 2 (g)+O 2 (g) ⇌ 2NO(g)
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