[Civil Engineering Version] Daily Question 20180308
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Light steel keels have high strength, wide versatility, and are easy to install; they are also a non-combustible material. Therefore, it is often used in combination with the following plate-like or block-like materials. Please indicate which of the following ( ) materials are not suitable for outdoor use. a. Granite veneer panels b. Marble veneer panels c. Gypsum boards d. Microcrystalline boards e. Cement pressure-treated boards Answer: bc
Light steel keels have high strength, wide versatility, and are easy to install; they are also a non-combustible material. Therefore, it is often used in combination with the following plate-like or block-like materials. Please indicate which material listed in ( C ) is not suitable for use outdoors. a. Granite decorative panel b. Marble decorative panel c. Gypsum board d. Microcrystalline board e. Cement pressure plate
b. Marble veneer panels c. Gypsum boards
b、Marble veneer panels c、Gypsum boards