For BaCl2, the dominant flame color is ______ and the wavelength of that color is ________. 对于 BaCl2，主导火焰颜色为______，该颜色的波长为________。多项选择题

A

red, 701 nm   红色，701海里

B

red-orange, 622 nm   红橙色，622 nm

C

orange, 609 nm   橙色，609海里

D

orange-yellow, 597 nm   橙黄色，597 nm

E

yellow, 587 nm   黄色，587海里

F

yellow-green, 577 nm   黄绿色，577海里

G

green, 535 nm   绿色，535海里

H

green-blue, 492 nm   绿蓝，492海里

I

blue, 474 nm   蓝色，474海里

J

blue-violet, 455 nm   蓝紫色，455海里

K

violet, 423 nm   紫罗兰，423海里

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For LiCl, the dominant flame color is ______ and the wavelength of that color is ________. 对于 LiCl，主导火焰颜色为______，该颜色的波长为________。

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Section A: Read the text and answer the questions. Brutalism is an architectural style, introduced in the 1950s. It uses exposed concrete to create geometric structures with a grey appearance. Concrete buildings are often criticised as cold and ugly, lacking the warmth of stone or the smooth feel of steel. However, concrete, as a building material, has unique characteristics. It is extremely flexible when wet, and is adapted to create interesting shapes. Many urban public buildings, such as universities, have also used concrete as the main material to indicate strength and permanence. Instead of keeping Brutalist buildings, many are being demolished to make space for modern styles. However, this does not acknowledge the cultural history of these buildings, and is not sustainable. Fill in the gap with ONE WORD from the paragraph. 1. Brutalist architecture included exposed concrete, which gave a cold Answer Question 1[input] .

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