When many is an indefinite pronoun as the subject, is the predicate singular or plural?

Not necessarily 1) many (of the) / a great many (of the) + plural noun + compound verb, for example: a great many books have been published this year. 2) many a is also used to modify "many" of countable nouns only, but it is necessary to add singular noun and single verb, for example: many a book has been

RELATED INFORMATIONS

1. The students went boating in the park. There were 60 people, and 16 boats were hired. Each big boat took 4 people, and each small boat took 3 people?
2. Given that f (x) = - X & sup3; - x + 1, (x belongs to R), it is proved that y = f (x) is a decreasing function on the domain of definition, and there is at most one real value x satisfying the equation f (x) = 0
3. As shown in the figure, Bo = OC, ab = DC, BF ‖ CE, and a, B, C, D are on the same line
4. As shown in the figure, ad bisects ∠ BAC, de ⊥ AB in E, DF ⊥ AC in F, and DB = DC, proving: EB = FC
5. As shown in the figure, ad bisects ∠ BAC, de ⊥ AB in E, DF ⊥ AC in F, and DB = DC, proving: EB = FC
6. As shown in the figure, ad bisects ∠ BAC, de ⊥ AB in E, DF ⊥ AC in F, and DB = DC, proving: EB = FC
7. Known: as shown in the figure, ab = AC, ∠ abd = ∠ ACD
8. As shown in the figure, given AB = AC, DB = DC, try to explain ∠ abd = ∠ ACD
9. As shown in the figure, AC ⊥ CB, BD ⊥ CB, ab = DC, verify ∠ abd = ∠ ACD
10. As shown in the figure, in △ ABC, ∠ C = 90 °, ad is the bisector of ∠ BAC, de ⊥ AB is on e, f is on AC, DB = DF As shown in the figure, in △ ABC, ∠ C = 90 °, ad is the bisector of ∠ BAC, de ⊥ AB is on e, f is on AC, DB = DF
11. Dad's words remind me of many things in the past. That's not right. It's a sick sentence What is your understanding of harmony? What is a close synonym?
12. When drawing the small signal equivalent circuit of amplifying circuit, the DC power supply in the circuit is often short circuited, that is, the positive end of DC power supply VCC is regarded as DC positive potential and AC negative potential How to understand this? In addition, why the sine wave signal generator with continuous frequency variation is often selected as the experimental and test signal source of amplification circuit
13. As shown in the figure, in rectangular ABCD, it is known that ab = 3aD, e and F are two bisectors of AB, AC and DF intersect at point G, and an appropriate rectangular coordinate system is established
14. In rectangular ABCD, it is known that ab = 3aD, e and F are two triad points of AB respectively, AC and DF intersect at point G Prove that EG is perpendicular to DF
15. In △ ABC, ab = AC,
16. Given the angle ABC = angle c, De, the circumference of the intersection AC of AB and the triangle BEC of point E is 10, AC BC = 2 Given that the angle ABC = angle c, de bisects the intersection of AB vertically, the perimeter of AC and point e triangle BEC is 10, AC BC = 2, find the perimeter of triangle ABC! But I just can't think of it. It's more difficult. I think of it. Just give me an idea!
17. AC = AB, de bisects AB vertically, intersects AB with D, intersects AC with E. if the perimeter of triangle ABC is 28, BC = 8, find the perimeter of triangle bec
18. If AB = AC = 10 in △ ABC is known, de bisects AB vertically and intersects AC with E. if the perimeter of △ BEC is known to be 16, find the perimeter of △ ABC
19. In triangle ABC, if AB = 3cm, AC = 8cm, the length of BC is odd, try to find the perimeter of angle ABC
20. In the triangle ABC, if AB = 3, AC = 8, the length of BC is odd, try to find the perimeter of the triangle ABC