【题目】 Why don't you bring______to his attention that you're too ill to work on?
A. that
B. it
C. this
D. him
科目:高中地理 来源: 题型:
【题目】You can borrow my car ___ you promise not too fast.
A. unless
B. even
C. in case
D.a s long as
查看答案和解析>>
科目:高中地理 来源: 题型:
【题目】 You won’t find paper cutting difficult __________ you keep practicing it.
A.even if
B.as long as
C.as if
D.ever since
查看答案和解析>>
科目:高中地理 来源: 题型:
【题目】
What's the______, in your opinion, of helping him if he doesn't make an effort to help himself?
A. sympathy
B. theme
C. object
D. point
查看答案和解析>>
科目:高中地理 来源: 题型:
【题目】分析下图,完成下列问题:
(1)在提取β-胡萝卜素时,用的有机溶剂是________。
(2)萃取的效率主要取决于________。
(3)因为________,所以应避免明火加热,而采用水浴加热的方法。通过加热处理,β-胡萝卜素溶解在萃取剂中,再经_______得到萃取液,经过______后,可_______得到纯净的β-胡萝卜素。
(4)胡萝卜素粗品鉴定的方法的名称是________。
(5)图中②的名称是________。①的作用是________。
(6)⑤为________。
(7)如果层析液没及⑤会导致________。
查看答案和解析>>
科目:高中地理 来源: 题型:
【题目】The entire organization has to be ready to all of these changes at a moment’s notice.
A. refer to B. apply to
C. adapt to D. appeal to
查看答案和解析>>
科目:高中地理 来源: 题型:
【题目】"You’ve already got well, haven’t you?"she asked.
→She asked me ___________.
A. if I have already got well, hadn’t you
B. whether I had already got well
C. have I already got well
D. had I already got well
查看答案和解析>>
科目:高中地理 来源: 题型:
【题目】人体的甲状旁腺和甲状腺C细胞分别分泌甲状旁腺素和降钙素。下图表示的是人体血钙浓度变化的示意图,下列相关叙述正确的是
A.降钙素能促进肾小管对钙离子的重吸收过程
B.人体血钙浓度在神经系统的调节下处于动态平衡
C.甲状旁腺素和降钙素对血钙的调节表现为拮抗作用
D.甲状旁腺素只能通过促进肾集合管对钙离子的重吸收而提高血钙浓度
查看答案和解析>>
科目:高中地理 来源: 题型:
【题目】 (2016·北京)My grandfather still plays tennis now and then, ___________ he’s in his nineties.
A. as long as B. as if C. even though D. in case
查看答案和解析>>
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com