简述政党与宪法的关系。

下图表示人体免疫反应的某些过程，对a、b、c、d四种细胞的判断，正确的是

A．a细胞具有识别特定抗原的能力

B．b细胞接受抗原刺激后能增殖分化

C．c细胞的裂解死亡属于非特异性免疫

D．d细胞通过产生抗体消灭抗原

(7分)以下是小丽同学在“探究共点力作用下物体的平衡条件”实验中的操作步骤。

请完成步骤中的填空:

A.将一方形薄木板平放在桌面上，在板面上用图钉固定好白纸，将三个弹簧测力计的挂钩用细线系在小铁环上，如图甲所示

B.先将其中两个测力计固定在图板上，再沿某一方向拉着第三个测力计。当铁环     时，分别记下测力计的示数F₁、F₂、F₃和             ，并作出各个力的图示

C.按              作出F₁、F₂的合力F₁₂，如图乙所示。比较F₁₂和            ，由此，找出三个力F₁、F₂、的关系。

            by her English teacher, now she has been a famous translator.   [ ]

A. Forced    

B. Followed  

C. Moved  

D. Influenced

“四个全面”战略布局的内容是什么？

It’s all annual back-to-school routine. One morning you wave goodbye, and that (1) evening you’re burning the late-night oil in sympathy. In the race to improve educational standards, (2) are throwing the books at kids. (3) elementary school students are complaining of homework (4) What’s a well-meaning parent to do.As hard as (5) may he, sit back and chill, experts advise. Though you’ve got to get them to do it, (6) helping too much, or even examining (7) too carefully, you may keep them (8) doing it by themselves. "I wouldn’t advise a parent to check every (9) assignment," says psychologist John Rosemond, author of Ending the Tough Homework. "There’s a (10) of appreciation for trial and error. Let your children (11) the grade they deserve. " Many experts believe parents should gently look over the work of younger children and ask them to rethink their (12) . But "you don’t want them to feel it has to be (13) ," she says.

That’s not to say parents should (14) homework-first, they should monitor how much homework their kids (15) . Thirty minutes a day in the early elementary years and an hour in (16) four, five, and six is standard, says Rosemond. For junior-high students it should be " (17) more than an hour and a half," and two for high school students. If your child (18) has more homework than this, you may want to check (19) other parents and then talk to the teacher about (20) assignments.

9（）

A.single

B.piece

C.page

D.other