12h(hun)܅^(q)()
A.̘I(y)څ^(q)
B.Q(mo)ׅ^(q)
C.}^(q)
D.ס̘I(y)I(y)s^(q)
_𰸡C
2C(j)܇wC(j)h(hun)(bio)(zhn)Ҏ(gu)һ^(q)(bio)(zhn)ֵ()
A.70
B.75
C.65
D.80
_𰸡A
3ʩh(hun)ŷŘ(bio)(zhn)m܇нĽʩŷŵĹur(ji)ͨšͨˮ͵ʩŷſɅձ(bio)(zhn)(zh)У()U(xin)ʩ^Юa(chn)ŷűO(jin)
A.ͬm
B.m
C.m
D.δҎ(gu)
_𰸡C
4yзǷ(wn)B(ti)y()ĵЧ
A.10min
B.15min
C.20min
D.25min
_𰸡C
5ڸۿڝMһur(ji)ҪһԽO(sh)(xing)Ŀ߅()ur(ji)
A.100m
B.150m
C.200m
D.300m
_𰸡C
6h(hun)Ӱur(ji)ȼһ(yng)ĹҪքe()
A.wur(ji)һur(ji)ur(ji)
B.wur(ji)Ҫur(ji)ur(ji)
C.Ԕ(x)ur(ji)һur(ji)Ҫur(ji)
D.Ԕ(x)ur(ji)һur(ji)ur(ji)
_𰸡C
鿴ԇ}(ni)Ոc(din)d
}졿2020h(hun)Ӱur(ji)ԇ}졾v}+¹(ji)}+ǰӖ(xn)ԇ} h(hun)Ӱur(ji)}2020(bo)YӍ}d俼Ӗ(xn)ȼȺ837779618 |
7ŷԴĹ̶O(sh)Y(ji)(gu)н҃(ni)н҃(ni)yr(sh)(yng)()B(ti)yyg(ni)ܸɔ_yԴ(yng)()
A.P(gun)]_
B._P(gun)]
C.__
D.P(gun)]P(gun)]
_𰸡D
8õB(ti)F(xin)ur(ji)()ͨ^оijһ^(q)һr(sh)(ni)B(ti)ϵy(tng)Ⱥĸc(din)CYԴrȻҎ(gu)Լ˞A(y)µڅʾڸ׃ch(hun)õķ
A.б
B.^B(ti)W(xu)
C.DίB
D.B(ti)C(j)
_𰸡B
9ֵyֵ()r(sh)yֵ
A.10dB(A)
B.20dB(A)
C.15dB(A)
D.30dB(A)
_𰸡A
10()Ҏ(gu)ˠII(y)Ļʘ̘I(y)(jng)Iпܮa(chn)h(hun)ȾO(sh)O(sh)ʩ߅ŷֵ͜y
A.h(hun)ŷŘ(bio)(zhn)
B.ʩTh(hun)ŷŘ(bio)(zhn)
C.I(y)I(y)Sh(hun)ŷŘ(bio)(zhn)
D.Ѕ^(q)h(hun)Ә(bio)(zhn)
_𰸡A
]