The difference between___1___and hobbies is that you get __2___,but you do a___3__.

4. When the frequency of recombinant between two genes is between 0 and 1, the relationship of these two genes is incomplete linkage.

Some writing activities can be between 1)______and 2)______

【单选题】在建立学生表时,如果要将"出生年月"限制在1980年9月1日至1990年8月31日,在"出生年月"的有效性规则中应写为 A. between 9/1/ 1980  and 8/31/1990 B. between # 1980/9/1 # and # 1990/8/31 # C. between 1980/9/1 and 1990/8/31 D. between #1980/9/1 and 1990/8/31 #

4. When the frequency of recombinant between two genes is between 0 and 1, the relationship of these two genes is incomplete linkage. A: 正确 B: 错误

One of the differences between Pit No. 2 and Pit No. 1 is that _________.

If bright part is F11 and dark part is F8 metered by light metering, there is one aperture between the bright part and dark part. The light ratio between the bright part and the dark part is ______. A: 2:1 B: 4:1 C: 1:4 D: 1:2

I _________see a football match between Class 1 and Class 3 tomorrow.

The value of β for a transistor is generally( ). A: 1 B: less than 1 C: between 20 and 150 D: above 500

Scene 1 is about the conflict between Father and ___ . A: Diane B: Sean C: Heidi