— You’ve worked there for half a year. What do you think about your boss? — He is a person who would try his best to ________ his purpose. A. accomplish B. settle C. perform
_________ is known to us all is that the old scientist, for ___________ life was hard in the past, still works very hard in his eighties. A．As; whom B．What; whom C
在主要港口设立市舶司的朝代是 （ ） A．隋 B．唐 C．两宋
①在“长度的测量”实验中，调整游标卡尺两侧脚间距离，主尺和游标的位置如图所示，此时卡尺两脚间狭缝宽度为_______mm；若要狭缝宽度调到0.20mm，
下列关于染色的叙述不正确的是 A.龙胆紫溶液专一性较强，主要对染色体染色 B.之所以用龙胆紫溶液染色，这与染色体的成分有关 C.如用相同浓度
春分日某地理小组在我国图示某地区进行野外考察，当北京时间12时20分的时候，测得P地的正午太阳高度为63°结合右图，回答1～2题。 1．图示地区最可
Hiking is great fun. You will get close to nature and take exercise at the same time. A. a; the B. a; 不填 C. 不填；the D. 不
满足
，
，则
的夹角为 （ ）
B.
C.
D.
