To obtain a sample of 10 books in the store, the manager walked to the first shelf next to the cash register to pick the first 10 books on that shelf. This is an example of a
To obtain a sample of 10 books in the store, the manager walked to the first shelf next to the cash register to pick the first 10 books on that shelf. This is an example of a
若有语句：char s1[10], s2[10]="books";，则能将字符串books赋给数组s1的语句是_____。
若有语句：char s1[10], s2[10]="books";，则能将字符串books赋给数组s1的语句是_____。
如果有定义语句char str1[10],str2[10]={"books"};则能将字符串"books"赋给数组str1的正确语句是( )。
如果有定义语句char str1[10],str2[10]={"books"};则能将字符串"books"赋给数组str1的正确语句是( )。
To obtain a sample of 10 books in the store, the manager walked to the first shelf next to the cash register to pick the first 10 books on that shelf. This is an example of a A: systematic sample. B: simple random sample. C: stratified sample. D: convenience sample.
To obtain a sample of 10 books in the store, the manager walked to the first shelf next to the cash register to pick the first 10 books on that shelf. This is an example of a A: systematic sample. B: simple random sample. C: stratified sample. D: convenience sample.
In 1999, Diana read 10 English books and 7 French books. In 2000, she read twice as many French books as English books. If 60% of the books! that she read during the two years were French, how many books did she read in 2000？（） A: 16 B: 26 C: 32 D: 39 E: 48
In 1999, Diana read 10 English books and 7 French books. In 2000, she read twice as many French books as English books. If 60% of the books! that she read during the two years were French, how many books did she read in 2000？（） A: 16 B: 26 C: 32 D: 39 E: 48
A student spends all of her income on pizza and books. When pizzas cost $3 each and books cost $10 each, she consumed 30 pizzas and 3 books per month. The price of pizzas fell to $2.90 each while the price of books rose to $11 each. The price change:
A student spends all of her income on pizza and books. When pizzas cost $3 each and books cost $10 each, she consumed 30 pizzas and 3 books per month. The price of pizzas fell to $2.90 each while the price of books rose to $11 each. The price change:
"Some books are to be tasted" means some books are _______.
"Some books are to be tasted" means some books are _______.
Hit the books means to beat the books hard.
Hit the books means to beat the books hard.
If a 4% increase in income causes a 2% increase in the amount of books demanded, then A: The income elasticity of demand for books is negative B: Books are a necessity and a normal good C: Books are luxury goods D: Books are inferior goods
If a 4% increase in income causes a 2% increase in the amount of books demanded, then A: The income elasticity of demand for books is negative B: Books are a necessity and a normal good C: Books are luxury goods D: Books are inferior goods
There are some _____ in our classroom. A: hundred of books B: the hundreds of books C: hundreds of books D: hundred of book
There are some _____ in our classroom. A: hundred of books B: the hundreds of books C: hundreds of books D: hundred of book