题目

下列溶液中Cl－浓度最大的是  （    ） A．200mL 2mol/L MgCl2溶液    B．1000mL 2.5mol/L NaCl溶液 C．250mL 1mol/L AlCl3溶液     D．300mL 5mol/L KCl溶液 答案：D阅读理解 　　Herb was at home alone one night while his parents were out for the evening. He had often stayed alone before, so he wasn't afraid. As he waited for his parents to return home, he watched the late movie on television. His eyelids became heavier and heavier as the time passed. 　　Suddenly Herb's eyes popped open. What was that noise in the next room? Herb strained his ears and heard the window slowly being inched open. For a minute Herb was so frightened that he could not move, his body felt like stone. 　　He knew that he mustn't lose his head and began to think of things he could do. He couldn't reach the telephone without passing the window where he had heard the noise, and he couldn't reach the door. Again he heard the sound of someone trying to enter his home through the window. 　　Herb's drums were standing in the corner near the TV. “A maybe there is something I can do,” thought Herb. 　　He grabbed the drumsticks and beat on his drums as he had never beaten before. The commotion was so awesome that Herb astonished even himself. He also surprised the person in the window, who turned tail and ran for all he was worth. The burglar was nipped in the bud. 　　Herb had just used his drums in a very unusual way, “Maybe drums aren't such a bad instrument after all,”thought Herb with a sign of relief. 1．The burglar flee when he heard the drum noise because ________. [　　] A．he thought he would be hit by a drumstick B．he knew a frightened boy was inside C．he liked piano music better D．he felt that he was in danger 2．________ awakened Herb. [　　] A．The television playingB．Drums beating C．A window openingD．The telephone ringing 3．What will probably happen next? [　　] A．Herb will sell his drums. B．Herb will call the police and tell them a burglar is nearby. C．The burglar will climb in the window. D．Herb's father will scold him for disturbing the neighbors. 4．Which of these is NOT a figure of speech? [　　] A．nipped in the budB．body felt like stone C．lose his headD．reach the telephone 5．How do we know that Herb's plan worked? [　　] A．The burglar ran away. B．The burglar listened to the music. C．The burglar robbed the family's home. D．The burglar stepped on some flower buds