搜题请搜索小程序“爱下问搜题”
问题 单项选择题

某建筑物，其抗震设防烈度为7度，根据《抗震规范》，“小震不坏”的设防目标是指下列哪一条

A．当遭受低于7度的多遇地震影响时，经修理仍可继续使用
B．当遭受低于7度的多遇地震影响时，一般不受损坏或不需修理仍可继续使用
C．当遭受7度的地震影响时，不受损坏或不需修理仍可继续使用
D．当遭受7度的多遇地震影响时可能损坏，经一般修理仍可继续使用

答案

参考答案：B

解析： 根据《抗震规范》，“小震不坏”的设防目标指的是当遭受低于抗震设防烈度(7度)的多遇地震影响时，一般不受损坏或不需修理仍可继续使用。

单项选择题

In the second half of each year, many powerful storms are born in the tropical Atlantic and Caribbean seas. Of (91) , only about half a dozen (92) the p, circling winds of 75 miles per hour or more that give them hurricane status, and several usually (93) their way to the coast. There cause millions of dollars of (94) , and bring death to (95) numbers of people.
The great storms that hit the coast start (96) innocent circling disturbances hundreds, even thousands of miles out to sea. As they travel aimlessly over water (97) by the summer sun, they are carried westward by the (98) winds. When conditions are just (99) , warm, moist air flows in (100) the bottom of such a disturbance, moves upward through it and comes out at the top. In the (101) , the moisture in this warm air produces rain, and with it the heat is converted to energy in the form of p winds. As the heat increases, the (102) hurricane begins to swirl in a counter-clockwise motion.
The average life of a hurricane is only about nine days, but it contains almost (103) power than we can imagine. The energy in the heat released by a hurricane’s rainfall in a(n) (104) day would (105) the entire electrical needs of the United States for more than six months. Water, not wind, is the main (106) of death and destruction in a hurricane. A(n) (107) hurricane brings 6-to 12-inch downpours (108) in sudden floods. (109) is the powerful movement of the sea-the mountains of water moving toward the low-pressure hurricane center. The water level (110) as much as 15 feet above normal as it moves toward shore.

A．travel

B．lose

C．start

D．make
查看答案
单项选择题

流动资产偿债能力的评价分为流动比率和速动比率，其合理的流动比率为（）

A、2：1

B、1：1

C、1：2

D、3：1
查看答案