生物体形成不同的组织是由于[ ] A.细胞分裂的结果 B.细胞生长的结果 C.细

题型:选择题

问题:

生物体形成不同的组织是由于[ ]

A.细胞分裂的结果

B.细胞生长的结果

C.细胞分裂和生长的结果

D.细胞分裂和分化的结果

考点:细胞的生长和分裂
题型:选择题

从A、B、C、D 四个选项中,选出与所给句子画线部分意思相同或相近并能替代的那一项,然后填写在括号里。

1. Yesterday he got a letter from his father. [ ]

A. heard of

B. heard about

C. heard a letter from

D. received a letter from

2.  —Are you happy to have two-month summer holidays?

     —Sure. We can relax ourselves and do many things we like.  [ ]

A. two months

B. two month

C. two months

D. two month's

3. Would you like a cold drink rather than coffee? [ ]

A. would than

B. would rather

C. instead

D. instead of

4. I'm sorry she isn't here right now.  [ ]

A. then

B. at the moment

C. just now

D. at this time

5. When you cross the road, be careful.[ ]

A. across

B. go through

C. go cross

D. walk across

题型:选择题

“小马过河”的故事告诉我们,影响自我效能感最重要的因素是()。

A.成败经验

B.替代经验

C.言语信息

D.情感状态

题型:选择题
下列运算,正确的是
[ ]
A.4+2ab=6ab
B.7xy-y=7x
C.6a4+3a4=6a8
D.8a2b-8ba2=0
题型:选择题

A.Netscape

B.Lynx

C.midas WWW

D.Mosaic

题型:选择题

肛瘘一般由()、管道、()3部分组成。

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