This is the unique solution to our problem().
A. only
B. alone
C. single
D. lonely
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The story was very touchinq.
A. inspiring
B. boring
C. moving
D. absorbing
下列的诗词名句,如果依照宴会送行、握手道别、别后思念、再度相见的次序排列,正确的排序是: ①执手相看泪眼,竟无语凝噎。 ②劝君更尽一杯酒,西出阳关无故人。 ③从别后,忆相逢,几回魂梦与君同。 ④问姓惊初见,称名忆旧容。
A. ②①③④
B. ①②③④
C. ④①③②
D. ②①④③
These are our motives for doing it.()
A. reasons
B. arguments
C. targets
D. pursuit
已知3阶行列式|α,β,γ|=3,求|3α-β+2γ,-α+β+γ,2α+5β-7γ|