皮皮学,免费搜题
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【单选题】
胆矾是一种蓝色晶体,化学式是CuSO 4 ·5H 2 O,胆矾受热时易失去结晶水,成为白色的无水CuSO 4 ,在工业上精炼铜、镀铜等都要用胆矾。上述对胆矾的描述中,没有涉及到的是
A.
物理性质
B.
制法
C.
用途
D.
化学性质
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举一反三
【单选题】Jim paid back the money to Bob and went to work in another town later.
A.
Right.
B.
Wrong.
C.
Doesn't say.
【简答题】Jim paid back the money to BOb and went to work in another town later.[A]Right.[B]Wrong.[C]Doesn’t say.
【多选题】二进制加法运算的基本规则是:
A.
逢二进一
B.
最低位是两个最低位的数相加,只求本位和,不需考虑更低位送来的进位数
C.
除最低位外,都是三个数相加,包括加数、被加数以及低位向本位的进位数
D.
任何位相加的结果都产生两个输出,一个是本位和,另一个是向高位的进位
【多选题】二进制算术运算的四则运算包括( )。
A.
加法
B.
减法
C.
乘法
D.
除法
【单选题】Musson predicted that another earthquake Would occur in southeast England sooner or later.
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】Masson predicted that another earthquake would occur in southeast England sooner or later. 查看材料
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】Some years ago the captain of a ship was very interested in medicine. He always took medicine books to sea and liked to talk about different diseases. One day a lazy sailor on his ship pretended to be...
A.
test the captain's knowledge of medicine
B.
be free from work
C.
have the best food on the ship
D.
play a joke on his friends
【单选题】Musson predicted that another earthquake would occur in southeast England sooner or later.
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】补全对话 从方框中选择适当的句子完成下面的对话,并将其序号填在横线上 A: Hey, you look mad. What’s wrong? B:I...I just can’t stand that terrible driver. He is so... A: 小题1: Oh, would you like something to drink, coffee or cola? B:Neith...
【多选题】加法运算的法则包括____。
A.
加法交换律
B.
加法结合律
C.
加法分配律
D.
加法互逆律
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