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【简答题】
在科学研究中,往往要把一个较大的课题分解成若干个小的子课题来分别进行研究。在“观察生长素对植物生长发育的影响”这一研究性学习课题中,某小组同学选用生长素类似物吲哚丁酸(IBA)进行如下实验: ①取生理状况相同的相同植物的三组带芽的枝条甲、乙、丙,每组10支; ②将甲、乙、丙组枝条的下端分别浸泡在下表所示的溶液中,相同时间后,扦插在潮湿的沙土中,在适宜的环境中培养。 ③一段时间后,观察甲、乙、丙三三组枝条的生根情况,统计每组枝条的平均生根数量,绘制得坐标如下。据图回答: 你认为他们的子课题名称是()
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参考答案:
举一反三
【单选题】dhcp客户端是使用地址()来申请一个新的ip地址的
A.
0.0.0.0
B.
10.0.0.1
C.
127.0.0.1
D.
255.255.255.255
【单选题】DHCP 客户端是使用地址( )来申请一个新的ip地址的。
A.
0.0.0.0
B.
10.0.0.1
C.
127.0.0.1
D.
255.255.255.255
【简答题】S1:Steady.S2:Steady.Steady on zero three six,sir.Q:What does this helm order mean?A. The order means that the rudder should be held in the forward and aft position. B. The order means that the swing s...
【简答题】On countless mornings over the past year, I stood with my son, James, in our driveway, watching our neighbor hurry off to kindergarten.My wife and I wanted to give James the best  education, but that ...
【单选题】---Ease the helm! ---Reply: Ease the helm! ---Report: __________.
A.
Wheel is midships
B.
Course 020 degrees
C.
Steady
D.
In position
【简答题】What procedures should be taken when you receive helm orders as a helmsman?
【简答题】Helm orders
【简答题】黄铁矿(未焙烧)
【单选题】---Ease helm. ---Ease helm. ________.
A.
Wheel midship
B.
Course 20°
C.
Steady
D.
Port ten
【单选题】S1: Steady. S2: Steady. Steady on zero three six, sir. Q: What does this helm order mean?
A.
The order means that the rudder should be held in the forward and aft position.
B.
The order means that the swing should be reduced as rapidly as possible.
C.
The order means that the swing should be reduced as slowly as possible.
D.
The order means that the rudder should be held on the course of 000 degrees.
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