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ҩѧרҵ֪ʶ

2017-11-15 11:15 ҽ http://bm.huatu.com/zhaosheng/ty/ylwsbs.html#kclx_43277 ߣɽͼ Դ

ñ׼뷨֤˾ƥֺⶨ׼ȷȣܳȡƬĩ15.00mg(֪˾ƥ10.00mg)׼ȷ밢˾ƥ12.50mgⶨð˾ƥΪ22.50mgʵļΪ

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21.ñ׼뷨֤˾ƥֺⶨ׼ȷȣܳȡƬĩ15.00mg(֪˾ƥ10.00mg)׼ȷ밢˾ƥ12.50mgⶨð˾ƥΪ22.50mgʵļΪ

A(%)=22.50/15.00*100%=150.0%

B(%)=12.50/10.00*100%=125.0%

C(%)=(22.50-10.00)/12.50*100%=100.0%

D(%)=10.00/12.50*100%=80.00%

E(%)=(22.50-15.00)/12.50*100%=60.00%

22.йҩ涨עҺPHֵΪ3.2-6.5ڲⶨƷҺPHֵ֮ǰȼƽУ(λ)ʱӦʹõı׼Һ

Aα׼Һ(PH4.01)

Bα׼Һ(PH6.86)

Cα׼Һ(PH1.68)ͱα׼Һ(PH4.01)

Dα׼Һ(PH4.01)α׼Һ(PH6.86)

Eα׼Һ(PH1.68)α׼Һ(PH6.86)

23.Һ0.1mg/LⶨҺ0.1mg/LʹõָʾΪ

B

Cβ-

Dᾧ

24.йҩ䡷Уױ(C)Aķ

A-ɼֹȷ

Bֹȷ

Cԭζ

EˮҺζ

25.ɫϵͳУ۰(n)

A̶ļ

BɫķЧ

Cɫij

Dɫ׷ظ

Eɫ׷ĶԳ

26.ԭĸ﷽

A.

B.

C.䶳

D.

E.΢

27.ijƬҩӦΪ 0.33gÿҩΪ 66%ôƬӦΪ

A. 0.1g

B. 0.2g

C. 0.3g

D. 0.4g

E. 0.5g

28.ʺϷĩֱѹƬĸ

A. ΢۹轺

B. ѹԵ

C. ΢ά

D.

E.

29.Ϊ˷ֹƬıٻƱʱѡõ󻬼Ϊ

A. A (Ӵ=36 )

B. B (Ӵ=91 )

C. C (Ӵ=98 )

D. D (Ӵ=104 )

E. E (Ӵ=121 )

30.ڽҼĿսҿпɼĶΪ

A.

B.

C. ڹ

D. ܼ

E. ʪ


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