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【单选题】
反馈型高频正弦波振荡器的起振条件是
A.
AF=1,
B.
AF=1,
C.
AF>1,
D.
AF>1,
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【单选题】He’s _____to know the answer.
A.
possible
B.
probably
C.
likely
D.
probable
【单选题】ddd
A.
QQHD
B.
ddd
【单选题】They____on a journey round the world.
A.
set about
B.
set up
C.
set off
D.
set out
【单选题】全年工艺成本与年产量呈( )关系。
A.
线性
B.
双曲线
【单选题】Jack is being ____ in hospital but I don’t know how soon he’ll be all right.
A.
cured
B.
treating
C.
treated
D.
examining
【简答题】He objects to (treat) ______in such a bad way.
【单选题】The fishing village where they went on a journey lies in           is now part of Hainan province.
A.
where
B.
what
C.
which
D.
that
【单选题】下列有关高中生物教材中实验研究的叙述,正确的是 ( )
A.
绿叶中的色素在滤纸条上呈现不同宽度的原因是它们在层析液中的溶解度不同
B.
用光学显微镜能观察到植物细胞中被染成红 (或橘黄)色的脂肪颗粒
C.
摩尔根和萨顿都运用 “假说—演绎法”证明了基因位于染色体上
D.
洋葱鳞片叶的内表皮细胞不能用来观察 “质壁分离及复原”现象
【单选题】Every minute should he made full use of_______our lessons. ?
A.
studying
B.
to study
C.
study
D.
being studied?
【简答题】计算:99999×22222+33333×33334=______.
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