A:
B:
C: U；
D:
E: Ω
F:
G:
H: R；Ω、
I: V
J:
K:
L: R；
M:
N: Ω
O:
P:
Q: R；Ω、
R: A
举一反三
- 电流、电压、电阻的常用表示字母分别是（），基本计量单位分别是（）。 A: I、R、U；A、V、Ω B: U、I、R；Ω、A、V C: I、U、R；A、V、Ω D: I、U、R；Ω、V、A
- It should be noted that many people feel their life is both happy and meaningful. A: A B: B C: C D: D E: E F: F G: G H: H I: I J: J K: K L: L M: M N: N O: O P: P Q: Q R: R
- Most books on happiness today assert that happiness is beneficial to health. A: A B: B C: C D: D E: E F: F G: G H: H I: I J: J K: K L: L M: M N: N O: O P: P Q: Q R: R
- Evidence from research shows that it takes meaning for people to thrive. A: A B: B C: C D: D E: E F: F G: G H: H I: I J: J K: K L: L M: M N: N O: O P: P Q: Q R: R
- Agriculture proves very difficult to quantify because of the constantly changing conditions involved. A: A B: B C: C D: D E: E F: F G: G H: H I: I J: J K: K L: L M: M N: N O: O P: P Q: Q R: R
内容
- 0
各种试剂按纯度从高到低的代号顺序是（） A: B: C: > D: E: > F: P G: H: I: > J: K: > L: R M: N: O: > P: Q: > R: R S: T: U: > V: W: > X: R Y: Z: [: > \: ]: > ^: P
- 1
Experiments were carried out to determine our body's genetic expression of feelings of happiness and meaning. A: A B: B C: C D: D E: E F: F G: G H: H I: I J: J K: K L: L M: M N: N O: O P: P Q: Q R: R
- 2
下列反应中，哪个是表示ΔH=ΔHfA、gB、r（s）的反应？（） A: B: g（ C: q）+ D: r（ E: q）= F: g G: r（s） H: 2 I: g（s）+ J: r2=2 K: g L: r（s） M: N: g（s）+1/2 O: r2（l）= P: g Q: r（s） R: S: g（s）+1/2 T: r2（S）= U: g V: r（s）
- 3
4 Complete the words. 25ba s t r a i g h t straight 1 p o i n _ _ _ ____ 2 L - s h a _ _ _ ____ 3 c u r _ _ _ ____ 4 r e c t a n _ _ _ ____ 5 v e r t i _ _ _ ____ 6 c i r c u _ _ _ ____ 7 r o _ _ _ ____ 8 c i r _ _ _ ____ 9 t r i a n _ _ _ ____ 10 h o r i z o n _ _ _ ____ 11 s q u _ _ _ ____ 12 p a r a l _ _ _ ____ 13 d i a m _ _ _ ____ 14 s _ _ _ - s h a p e d ____
- 4
4 Complete the words. ► h u m a n human 1 p r d c t b l e ____ 2 d i s e a r ____ 3 f m n e ____ 4 h r m f l ____ 5 a t m o e r e ____ 6 e n v r o m n t ____ 7 p l l t n ____ 8 l q u d ____ 9 d s s e ____ 10 c l m t ____