下列有关植物激素的叙述,正确的是( ) A.图1中生长素(IAA)和赤霉素(GA)同时存在对茎切段细胞分裂有促进作用 B.图2中生长素对不同植物的影响有差异,较高浓度的生长素可作为小麦田中的双子叶杂草除草剂 C.图3中幼根a侧生长素浓度若在曲线C点,则b侧生长素浓度一定在F点 D.图4中侧芽b和顶芽a所含生长素的浓度依次为A和D
Paul, could you help me _______ when the earliest train will leave for Beijing?
OK. I'll do it right away.( )
look out
get out
find out
take out
Be careful when you are driving, _______ in a rainstorm like this.
Thanks. I will.( )
especially
probably
nearly
hardly
Keep working hard, Linda. You will surely achieve your dream _______ you don't give it up halfway.
I will, thank you, Miss Li.( )
since
if
though
until
Dinner is ready. Help yourself!
Oh! It _______ delicious. You are really good at cooking.( )
tastes
sounds
gets
feels
Is this Alice's bike?
No, is under the tree. She put it there this morning.( )
she
her
herself
hers