What are the symbols of Chinese sick sentence revision in primary school for three years

What are the symbols of Chinese sick sentence revision in primary school for three years

Analysis of sick sentences
1、 Improper word order
2、 Improper collocation
3、 Incomplete or redundant components
4、 Structural confusion
5、 The meaning is not clear
6、 Illogical
7、 Analysis of sick sentences in Novels
punctuation
1、 Full stop
2、 Question mark
3、 Exclamation mark
4、 Comma
5、 Dunhao
6、 Semicolon
7、 Colon
8、 Quotation marks
9、 Brackets
10、 Dash
11、 Ellipsis
12、 Emphases
13、 Connection number
14、 Book name
15、 Proper name
16、 Interval number
17、 Other punctuation

After hard work, my study purpose has been improved
I'll hand it in tomorrow!

After hard work, my study purpose has been improved
Through hard work, my study and achievement have been improved

The feeling of helping mother do housework

Thank you

What's half the square?

A quarter

Mathematical talent into! On inequality problems! Urgent! Online, etc
Given that m ≠ 0, and the solution set of the inequality x + 2 of M minus x-3 of M is (2, positive infinity), we can find the value of real number M
Everybody big. Quick. Very anxious. Thank you
Everyone's results are different

(x + 2) / M-1 > (x-3) / M & sup2; multiply the two sides by M & sup2; > 0, so m (x + 2) - M & sup2; > x-3mx + 2m-m & sup2; > x-3 (m-1) x > - 3-2m + M & sup2; divide the two sides by M-1 to get the solution set. The solution set is x > 2, and the inequality does not change, so M-1 > 0 and (- 3-2m + M & sup2;) / (m-1) = 2-3-2m + M & sup2; = 2m-2m & sup2; - 4

46 + 47 + 48 + 49 + 50 + 51 + 52 + 53 + 54 = () times () equals ()

46+47+48+49+50+51+52+53+54=(46+54)+(47+53)+(48+52)+(49+51)+50
=4(50*2)+50
=50*9
=450

1. When x =? The values of 4x + 8 and 3x-10 are equal; when x =? The values of 4x + 8 and 3x-10 are opposite to each other And so on
2. If the binomial-1 / 2A ^ 2x-1 B ^ 4 is combined with 3 / 2 ^ A2B ^ y + 1, the result is a ^ 2B ^ 4, then | 2x-3y | =? 3. Find the rule: ↓, →, ↑, ↓, →, ↑, ↓ According to this rule, the 10th pattern is?; among the first 16 patterns, there are? →?; the 2010 pattern is? 4.5 and 3 / 5 + [4 and 1 / 7 + (- 5.6) - 6 and 1 / 7], 5. - 1 ^ 2010 - (2009 / 2010-2008 / 2009) x [27 + (- 3) ^ 3],

3. Find out the rules: ↓, →, ↑, ↓, →, ↑ According to this rule, the 10th pattern is?; in the first 16 patterns, there are? →?; in the 2010 pattern, there are three and three first rules, so the 10th pattern is?, in the first 16 patterns, there are five?; in the 2010 pattern, there are

(- 3) × (- 2 and 2 / 7) + (- 4) × (- 2 and 2 / 7) - 36 × (7 / 18-2 / 9-5 / 12) is equal to shrimp?

=(-3)*(-16/7)+(-4)*(-16/7)-36*(7/18-4/18-5/12)
=(-16/7)*(-3-4)-36(1/6-5/12)
=16-36*(-1/4)
=16+9
=25

The solution equation: (1) 12 (2-3x) = 4x + 4; (2) 2x + 16-1 = 2x − 13

（1）24-36x=4x+44x+36x=24-440x=20x=12；（2）2x+16-1=2x−132x+1-6=2（2x-1）2x+1-6=4x-24x-2x=1-6+22x=-3x=-32．

1978×1979+1979×19801+2+3+… +1978+1979+1978+1977+… +3+2+1=______ ．

1978×1979+1979×19801+2+3+… +1978+1979+1978+1977+… +3+2+1=1979×(1978+1980)(1+1978)×1978÷2×2+1979=1979×39581979×1978+1979=39581979=2．