个体或群体重复获得相同奖赏或次数越多，则该奖赏对个体的价值越小，指的是（） A．成功

下列各句中，没有语病，句意明确的一句是（ ）

A．天上皓月当空，地上灯火辉煌，千家万户都沉浸在除夕之夜的欢乐中。

B．某工厂以技术进步为动力，不断致力于新产品、新技术、新工艺、新材料的研制和开发。

C．在古代，这类音乐作品只有文字记载，没有乐谱资料，既无法演奏，也无法演唱。

D．中国电影就像一个换季的美人，急于抢占时髦之先，换妆改颜，于是难免陷入不顾自身条件强行起飞而遭致观众白眼的尴尬境地。

Catherine Destivelle is a rock star. She loves rock, but she can’t sing or play the guitar! She is a rock climber and a big star in France and Italy. She is the most famous woman climber in the world because she often climbs without ropes. She climbs in many countries but most often in the French Alps near Chamonix, where she lives. She started climbing near her home in Paris when she was five. Then, at fourteen, she joined the French Alpine Club to learn more, but immediately she climbed better and more quickly than the older members of the club. She won her first competition in Italy in 1995.

Three years ago she found a new route up the Dru Mountain near Chamonix. The climb took eleven days and for four days the snow was so heavy that she could not move. Last year other climbers tried to follow the new Destivelle Route, but they failed. They are going to try again this year.

People always ask her about her climbing. She says, “I climb because I’m in love with mountains. I like touching the rock and reading the face of the rock. I like it a lot. I felt at home on the side of a mountain. I prepare well before I go, so I’m never worried.”

Catherine chooses new mountains from books—like buying from a shopping catalogue(目录)! “I see a nice mountain and I go to climb it!” Her next mountain is in Pakistan. She is going there next month. “It’s much bigger than the Dru, so it’s going to take longer to climb. An American climber, Jeff Lowe, is coming with me to help.”

小题1:Catherine Destivelle is called ‘a star’ because ________.

A．she won a competition in 1995

B．she loves rocks

C．she’s a famous woman climber

D．she found a new route up to the Dru Mountain小题2:She had great trouble finding a new route up the Dru Mountain because _______.

A．she lost her way

B．the climb took 11 days

C．she needed help from an American climber

D．there was heavy snow小题3:On the side of a mountain she feels _______.

A．independent

B．easy and happy

C．energetic and challenged

D．nervous小题4:We can infer from the passage people often ask her “________”.

A．Why do you like climbing?

B．Are you in love with an American climber?

C．Do you enjoy reading books on mountains?

D．What do you do before you go climbing?

下列指标可以用来消除年龄构成不同对预期寿命损失的影响，从而评价疾病对人群健康影响的程度的指标是

A．潜在减寿年数

B．伤残调整寿命年

C．寿命损失年

D．健康寿命损失年

E．以上都不是

请问一般一桶机油是有多少升？

冰铜吹炼目的是什么？