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【单选题】
发动机工作温度正常时，发动机怠速和高速时机油压力应符合规定如油压过低，则应在限压阀弹簧一端适当( )垫片。A.
减少
B.
不变
C.
任意
D.
增加
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【单选题】Which one of the following is true. (Choose one.) Low Key Lighting is often used in
A.
Comedies
B.
News programs
C.
Sports programs
D.
Horror and thriller films.
【简答题】微型计算机的硬件系统包括哪些主要构成部分？
【单选题】A variety of drugs can alter DNA replication in eukaryotic cells. Which one of the following steps could be a target for such a drug? Choose the one best answer.
A.
The enzyme family of DNA polymerases, which unwinds parental strands
B.
The enzyme family of topoisomerases, which copy each parental strand in the 3 ′ -to-5 ′ direction
C.
The enzyme family of helicases, which copy each parental strand in the5 ′ -to-3 ′ direction
D.
The finding that both strands of newly synthesized DNA always grow continuously
E.
The enzyme DNA ligase, which joins Okazaki fragments
【单选题】Choose which one of the four words most suitably fills the blank space. Attention: the same requirement goes to the following blank-filling questions .
A.
ey all take too much ____ of his kindness and generosity.
B.
profit
C.
advantage
D.
benefit
E.
use
【单选题】Please choose which one is not included in article 2 Promote digital transformation.
A.
digitalization of agricultural production
B.
operation
C.
management
D.
customs clearance
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