Some people suggest changing the date for the college entrance exams into ______ Saturday and Sunday of the first week of June, which I think is ______ good advice. A. / ; / B. t
依次填入下列横线处的词语，最恰当的一组是（ ）①神舟号在辽阔的宇宙空间遨游21小时10分， 了大量珍贵的科学数据。②我们同台湾分裂
在经济全球化深入发展的条件下，世界各国利益相关、命运与共。下列对经济全球化的认识正确的是( ) ①它促使商品、劳务、技术等在全球范围内流动
某种生物孢子的直径为，用科学记数法表示为____________m。
You're in a department store and you see a couple of attractive young women looking at a sweater. You listen to their conversation:I can't believe it--a Lorenzo Bertolla! They are almost impossible to
According to the psychoanalyst Sigmund Freud, wisdom comes from the _____ of maturity. A. fulfillment B. achievement C. establishment D. accomplishment
19.人的肤色正常(A)与白化(a)基因位于常染色体上，色觉正常(B)与红绿色盲(b)基因位于X染色体上。一对表现正常的夫妇(但这对夫妇的父亲均是色盲患者)
让杂合子Aa连续自交三代，则第四代中杂合子所占比例为 A、1/4 B、1/8 C、1/16 D、1/32
