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【判断题】
水泥混凝土拌合试验采用人工拌合水泥混凝土时，先将称好的砂和水泥在润湿的铁板上拌匀，再加入粗集料拌合均匀后加水拌和均匀即可A.
正确
B.
错误
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】基坑(槽)作直立壁不加支撑的允许规定，密实、中密的砂土和碎石类土(填充物为砂土)时，挖方深度为（ ）。
【单选题】According to the article, what were the first living creatures to travel from Earth to space?
A.
mice
B.
dogs
C.
fruit flies
D.
human beings
【单选题】There were six people in the car, ______ a pile of luggage and three pet dogs.
A.
but for
B.
besides
C.
prior to
D.
what with
【单选题】Questions 7 to 10 are based on passage 3. 7. According to the passage, what were dogs trained for in the past?
A.
For protection against other animals.
B.
Just for fun.
C.
For protection against other dogs.
D.
For the purpose of guarding the house.
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