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【多选题】
以待检杂质标准液浓度为(C),体积为(V),取样量为(S),杂质限量为(L),列出计算公式可为( )
A.
L=(V×C)/S
B.
V=(L×S)/C
C.
V=S×C/L
D.
S=(C×V)/L
E.
L=V/C×S
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【单选题】若i 1 =2i 2 ,n 1 =n 2 /2,则当P相同时,______。
A.
(F/P,i1,n1)<(F/P,i2,n2)
B.
(F/P,i1,n2)=(F/P,i2,n2)
C.
(F/P,i1,n1)>(F/P,i2,n2)
D.
不能确定(F/P,i1,n1)与(F/P,i2,n2)的大小
【单选题】Read the paragraph from the section "Winning A Twitter Challenge." Eric's father is a federal worker. He works for the U.S. government. He had been forced to take a leave of absence, like an unwanted ...
A.
a fun vacation the whole family takes together
B.
a time when people are forced to stop working
C.
an amount of money that people need to spend
D.
an absence from school because of sickness
【单选题】读程序: #include <stdio.h> f(int b[],int n) { int i,r; r=1; for(i=0;i<=n;i++) r=r*b[i]; return r; } main() { int x,a[]={2,3,4,5,6,7,8,9}; x=f(a,3); printf('%d/n',x); } 上面程序的输出结果是( )。
A.
720
B.
120
C.
24
D.
6
【多选题】中国木偶片的代表作是 。
A.
《人参娃娃》
B.
《神笔马良》
C.
《阿凡提》
D.
《聪明的鸭子》
【简答题】请在资料一栏找到音频4-4-3,收听并完成下面练习 SECTION 3 Questions 21-30 Questions 21-22 Choose TWO letters, A-E. In which TWO ways is Dan financing his course? A He is receiving money from the government. B His...
【单选题】下面程序的输出结果是( ) #include<stdio.h> f(b,n) int b[],n; {int i,r; r=1; for(i=0;i<=n;i++) r=r*b[i]; return r; } main() {int x,a[]={2,3,4,5,6,7,8,9}; x=f(a,3); printf('%d/n',x); }
A.
720
B.
120
C.
24
D.
6
【简答题】数列{a n }满足a 1 =1, ,其中λ∈R,n=1, 2,…,给出下列命题: ① λ∈R,对于任意i∈N*,a i >0; ② λ∈R,对于任意i≥2(i∈N*),a i a i+1 <0; ③ λ∈R,m∈N*,当i>m(i∈N*)时总有a i <0。 其中正确的命题是(    )。(写出所有正确命题的序号)
【单选题】Read the paragraph from the section "Winning Peanut Butter Forever." Eric's father is a federal worker. He works for the U.S. government. He has been forced to take a leave of absence. He cannot go to...
A.
places in government
B.
working very hard
C.
time away from work
D.
staying home sick
【单选题】《葫芦兄弟》是上海美术电影制片厂于1986年原创出品的13集系列( )片,是中国动画第二个繁荣时期的代表作品之一,至今已经成为中国动画经典。讲述了七个本领超群的兄弟,为救亲人前赴后继妖精们周旋、战斗的故事。
A.
木偶动画
B.
水墨动画
C.
赛璐璐动画
D.
剪纸动画
【简答题】离子交换柱要装填的 ___________________ 。
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