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【单选题】
百合的学名为Lilium brownii var.viridulum,可见百合是L.brozonii的一个( )。
A.
亚种
B.
变种
C.
原变种
D.
变型
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【单选题】The atmosphere is as much a part of the earth as __ its soil and the water of its lakes, rivers and oceans.
A.
are
B.
is
C.
do
D.
has
【单选题】fre gr
A.
gr eg
B.
e rgre ge r
C.
fgre gr
D.
g egre ger
【单选题】根据主、左视图选择正确的俯视图。( )
A.
(A)
B.
(B)
C.
(C)
D.
(D)
【简答题】Venus is the second __1__ in distance from the sun and nearest to the Earth of all the planets in the __2__system. Except for the sun and the moon, Venus is the __3___object in the sky. The planet is ...
【简答题】The Importance of Chopsticks (听力音频13) In 1 , respect has to be given to the elderly. Table manners are very 2 during a Chinese meal. Each time a 3 is served, everyone 4 to wait until the elder person ...
【简答题】A.movements B.activities C.procedures D.deeds
【单选题】优级纯、分析纯、化学纯试剂的代号依次为( )。
A.
GR、CP、AR
B.
GR、AR、CP
C.
CP、GR、AR
D.
AR、GR、CP
E.
AR、CP、GR
【简答题】Find out the wrong use of comma in the following sentences. 1. Because, her alarm clock was broken, she was late for class. 2. The cat scratched at the door, while I was eating. 3. To get a seat you'd...
【多选题】事件营销一共包括以下( )类型
A.
热点事件
B.
危机公关
C.
公益活动
D.
名人效应
【单选题】Estimate the pressure in the water pipe shown in this figure. The manometer is open to the atmosphere.
A.
10 kPa
B.
9 kPa
C.
8 kPa
D.
7 kPa
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