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【单选题】
表面活性剂具有亲水基团和亲油基团的两亲分子,表面活性剂分子中亲水基和亲油基之间的大小和力量平衡程度的量,表面活性剂的亲水亲油平衡值定义为HLB值。在图6的情况下,选择破乳剂的HLB值最恰当的是( )
A.
选择使乳状液稳定性最低点的HLB值
B.
10
C.
2
D.
13
E.
17
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参考答案：
举一反三
【单选题】In order to open a bank account, how much does Jackie need to deposit with the bank?
A.
20 dollars.
B.
20 Euros.
C.
20 Franc.
D.
20 RM
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【多选题】In order to open up the market, the initiative proposed three of the measures:
A.
holding China International Import Expo from 2018,
B.
supporting business people from relevant countries to participate in trade fairs in China,
C.
launching FTA negotiations with interested countries and regions.
D.
Futhering the opening-up to the outside world
查看完整题目与答案
【单选题】标志着结束在中国共产党内占据统治地位长达四年之久的王明“左”倾冒险主义的会议是在( )。
A.
遵义会议
B.
八七会议
C.
古田会议
D.
中共六届四中全会
查看完整题目与答案
【判断题】Door closer refers to those who close certain doors in his or her life in order to open the windows of opportunity and happiness.A. True B. False
A.
正确
B.
错误
查看完整题目与答案
【简答题】一、填空题 请补充 main 函数,该函数的功能是:计算两个自然数 n 和 m(m main() { int n,m; long sum; ______ ; printf("\nInput n,m\n"); scanf("%d,%d",&n,&m); while(n<=m) { ______ ; n++; } printf("sum=______ \n",sum); }
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【简答题】填空题 请补充main函数,该函数的功能是:从一个字符串中截取前面若干个给定长度的子字符串。其中,str1指向原字符串,截取后的字符存放在str2所指的字符数组中,n中存放需截取的字符个数。 例如,当str1="cdefghij",然后输入4,则str2="cdef"。 注意:部分源程序在文件BLANK1 .C中 。 请勿改动 main 函数和其他函数中的任何内容,仅在 main 函数的横线上填入...
查看完整题目与答案
【单选题】In order to open an account, you should ______.
A.
have a permanent address
B.
be a permanent resident
C.
be able to drive
D.
have a foreign student advisor
查看完整题目与答案
【单选题】In order to correctly open a new coil of manila line , you should______.
A.
pull the tagged end from the top of the coil
B.
pull the tagged end through the eye of the coil
C.
secure the outside end and unroll the coil
D.
unreel the coil from a spool
查看完整题目与答案
【单选题】听力原文：M: All you need to open a savings account is $20. But in order to earn reasonable interest you should maintain a balance of at least $ 2,000. W: I only have $ 200 but I'll open an account anyway....
A.
That she needs $200 to open an account.
B.
That savings accounts earn low interest.
C.
That she should not open an account.
D.
That $ 2,000 will earn reasonable interest.
查看完整题目与答案
【简答题】填空题 请补充main函数,该函数的功能是:从键盘输入一个字符串及一个指定字符,然后把这个字符及其后面的所有字符全部删除。 例如,输入"abcdef",指定字符为"e",则输出"abcd"。 注意:部分源程序在文件BLANK1.C 中 。 请勿改动 main 函数和其他函数中的任何内容,仅在 main 函数的横线上填入所编写的若干表达式或语句。 #include #include #defin...
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相关题目：
【单选题】In order to open a bank account, how much does Jackie need to deposit with the bank?
A.
20 dollars.
B.
20 Euros.
C.
20 Franc.
D.
20 RM
查看完整题目与答案
【多选题】In order to open up the market, the initiative proposed three of the measures:
A.
holding China International Import Expo from 2018,
B.
supporting business people from relevant countries to participate in trade fairs in China,
C.
launching FTA negotiations with interested countries and regions.
D.
Futhering the opening-up to the outside world
查看完整题目与答案
【单选题】标志着结束在中国共产党内占据统治地位长达四年之久的王明“左”倾冒险主义的会议是在( )。
A.
遵义会议
B.
八七会议
C.
古田会议
D.
中共六届四中全会
查看完整题目与答案
【判断题】Door closer refers to those who close certain doors in his or her life in order to open the windows of opportunity and happiness.A. True B. False
A.
正确
B.
错误
查看完整题目与答案
【简答题】一、填空题 请补充 main 函数,该函数的功能是:计算两个自然数 n 和 m(m main() { int n,m; long sum; ______ ; printf("\nInput n,m\n"); scanf("%d,%d",&n,&m); while(n<=m) { ______ ; n++; } printf("sum=______ \n",sum); }
查看完整题目与答案
【简答题】填空题 请补充main函数,该函数的功能是:从一个字符串中截取前面若干个给定长度的子字符串。其中,str1指向原字符串,截取后的字符存放在str2所指的字符数组中,n中存放需截取的字符个数。 例如,当str1="cdefghij",然后输入4,则str2="cdef"。 注意:部分源程序在文件BLANK1 .C中 。 请勿改动 main 函数和其他函数中的任何内容,仅在 main 函数的横线上填入...
查看完整题目与答案
【单选题】In order to open an account, you should ______.
A.
have a permanent address
B.
be a permanent resident
C.
be able to drive
D.
have a foreign student advisor
查看完整题目与答案
【单选题】In order to correctly open a new coil of manila line , you should______.
A.
pull the tagged end from the top of the coil
B.
pull the tagged end through the eye of the coil
C.
secure the outside end and unroll the coil
D.
unreel the coil from a spool
查看完整题目与答案
【单选题】听力原文：M: All you need to open a savings account is $20. But in order to earn reasonable interest you should maintain a balance of at least $ 2,000. W: I only have $ 200 but I'll open an account anyway....
A.
That she needs $200 to open an account.
B.
That savings accounts earn low interest.
C.
That she should not open an account.
D.
That $ 2,000 will earn reasonable interest.
查看完整题目与答案
【简答题】填空题 请补充main函数,该函数的功能是:从键盘输入一个字符串及一个指定字符,然后把这个字符及其后面的所有字符全部删除。 例如,输入"abcdef",指定字符为"e",则输出"abcd"。 注意:部分源程序在文件BLANK1.C 中 。 请勿改动 main 函数和其他函数中的任何内容,仅在 main 函数的横线上填入所编写的若干表达式或语句。 #include #include #defin...
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