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听力原文: Should a person own a car? This is an important question. In a large urban area, there are some good reasons for owning a car. First, a car allows a person to move around freely. With a car there is no need to check a bus schedule or wait for a train. Second, a car is a comfortable way to travel, especially in the winter time. In bad weather, the driver stays warm and dry, while the poor bus or train rider might have to stand in the rain. Finally, a driver is usually safe in a car at night. The bus rider might need to walk down a dark street to get to a stop, or wait on a dark corner. There are, on the other hand, many good reasons against owning a car. First, it can be very expensive. The price of fuel continues to rise each year. In addition, it is expensive to maintain and repair a car. A simple repair can cost $ 50. In an urban area, it might also be expensive to park the ear. Second, owning a car can cause worry and stress. It is exhausting to drive in heavy traffic. If you leave your car on the street, it might get stolen. That is something else to worry about. (33)
A.
Buses and trains are too crowded.
B.
A person can move around freely.
C.
It is easy to maintain cars.
D.
A driver is usually safe in his ear.
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参考答案:
举一反三
【单选题】躯体形式障碍主要应与以下疾病相鉴别,但除外( )
A.
焦虑症
B.
应激相关障碍
C.
神经衰弱
D.
抑郁症
E.
精神分裂症
【单选题】更换或修理各种继电器时,其型号、规格、容量、线圈电压及技术指标,应与原图纸要求
A.
稍有不同
B.
相同
C.
可以不同
D.
随意确定
【单选题】更换或修理各种继电器时力其型号、规格、容量、线圈电压及技术指标力应与原图纸要求()。
A.
稍有不同
B.
相同
C.
可以不同
D.
随意确定
【单选题】更换或修理各种继电器时,其型号,规格,容量,线圈电压及技术指标,应与原图纸要求( )。
A.
可以不同
B.
相同
C.
稍有不同
D.
随意确定
【单选题】用NaAc.3 H2O 晶体,2.0mol/L HAc来配制pH为5.0的HAc-NaAc缓冲溶液1L,其正确配制是( )。M(NaAc.3H2O)=136.0g/mol,Ka=1.8×10-5 。
A.
将49gNaAc.3H2O 放入少量水中溶解,再加入50mol2.0HAc溶液,用水稀释1L
B.
将98gNaAc.3 H2O 放入少量水中溶解,再加入50ml2.0mol/L HAc溶液,用水稀释至1L
C.
将25gNaAc.3H2O 放入少量水中溶解,再加入100ml2.0/L HAc溶液,用水稀释至1L
D.
将49gNaAc.3 H2O放少量水中溶解,再加入100ml 2.0mol/L HAc溶液,用水稀释至1L
【判断题】两端固定梁的第一频率比相应简支梁(杆长与截面相同,质量分布也相同)的第一频率高。( )
A.
正确
B.
错误
【单选题】除息日后股票的价格会下跌,跌幅约为分派的股利。( )
A.
正确
B.
错误
【单选题】后的股票交易价格将会下跌。
A.
股利宣告日
B.
股权登记日
C.
除息日
D.
股利支付日
【简答题】某药物消除的V m 为10μmol/(L·h),当血药浓度为4μmol/L时,消除速度为5gmol/(L·h)。试问该药的K m 为多少?当血药浓度降为1μmol/L时药物的消除速度为多大?
【单选题】用NaAc·3H2O晶体,2.0mol/L HAc来配制pH为5.0的HAc-NaAc缓冲溶液1L。其正确的配制是( )。M(NaAc·3H2O)=136.0g/mol,Ka=1.8×10-5。
A.
将49gNaAc·3H2O晶体放入少量水中溶解,再加入50mL2.01mol/L HAc溶液,用水稀释1L
B.
将98gNaAc·3H2O放入少量水中溶解,再加入50mL2.01mol/L HAc溶液,用水稀释至1L
C.
将25gNaAc·3H2O放入少量水中溶解,再加入100mL2.01mol/L HAc溶液,用水稀释至1L
D.
将49gNaAc·3H2O放入少量水中溶解,再加入100mL2.01mol/L HAc溶液,用水稀释至1L
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