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【单选题】
太阳辐射能是地球表面能量的主要来源，下列各项能量源于太阳能的是（ ） ①植物生长 ②喜马拉雅山的隆起 ③地热和温泉 ④火山喷发 ⑤风力 ⑥煤、石油等化石能源 ⑦水力发电A.
①⑥⑦
B.
②③④⑥
C.
①②⑤⑥
D.
①⑤⑥⑦
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【简答题】造林树种选择的意义、基本原则和基本方法是什么？
【单选题】There're so many beautiful gifts in the shop, but I don't know ________. [ ]
A.
to choose which one
B.
what choose
C.
which one to choose
D.
to choose what
【单选题】We have 3 rooms ____________ , but I can’t decide ____________ .
A.
to live, to choose which one
B.
lived, choose which one
C.
to live in, which one to choose
D.
live, which one
【单选题】The suits look _____ beautiful _____ I don't know _____. [ ]
A.
too; to; which one to choose
B.
so; that; which one to choose
C.
so; that; choose which one
D.
too; to; which to choose
【简答题】园林树种规划的原则有哪些？树种选择的最基本原则是什么？
【单选题】. There is such an occasion ___________ we know lots of words, but we can’t choose a suitable one to express ourselves.
A.
where
B.
when
C.
which
D.
what
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