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【简答题】
Read the statements. Then listen to the talk again and decide whether each statement is true or false.请将正确的序号写在空格中。 1. Ever since the 15th century attempts have been made to save Venice, but so far nobody has managed. A. True. B. False. 2. There are as many as 40 floods in Venice between May and September every year. A. True. B. False. 3. There are no cars in Venice, which many people think helps make it a romantic city. A. True. B. False. 4. The speaker thinks that the barriers used to stop the water should last 100 years. A. True. B. False. 5. The speaker advises people to visit the beautiful and historic city before it is too late. A. True. B. False.
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【单选题】以下if 语句的表达式书写错误的是()。
【多选题】如图，判断立体表面上指定线段、平面相对于投影面的位置：【图片】
A.
AB是正平线，BC是铅垂线
B.
AB是一般位置直线，BC是铅垂线
C.
AB是一般位置直线，CD是正垂线
D.
BC是侧平线，CD是水平线
E.
BC是铅垂线，CD是侧平线
F.
BC是侧平线，CD是正垂线
G.
AB是正平线，BC是侧平线
H.
AB是正平线，CD是正垂线
I.
P面是侧垂面，Q面是正垂面
J.
P面是水平面，Q面是侧平面
【简答题】S: It is a fine day, isn’t it? M: Yes, I like the weather in the city. By the way, I am from _________________ Province. My name is ________. Nice to meet you. S: Nice to meet you, too. I am Steve...