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多项选择题

编制材料消耗定额的基本方法有 A.
现场技术测定法

B.
试验法 C.
统计法 D.
理论计算法

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If you want to make a good product description, you should _______.A、focus on your ideal buyer
B、connect product’s features to its benefits
C、make your description scannable and easier to read
D、make it appealing to potential customers
单项选择题
Therespiratory diverticulum initially is inpen communication with the primitiveforegut.Which of the following embryonic structures is responsible for separating these twostructures?()
A．Laryngotracheal groove
B．Posterior esophageal folds
C．Laryngotracheal diverticulum
D．Tracheoesophageal septum
E．Bronchopulmonary segment
单项选择题
The ancient Silk Road and ""Amber Road“ these two roads joined in what is now ---------and help exchanges between Western and Eastern civilizations.
A．Poland
B．Kazakhstan
C．Vietnam
D．Nepal
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